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Mercury_7003868 | Which organ is most responsible for oxygen entering the blood stream? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"nose",
"trachea",
"bronchi",
"lungs"
]
} | D | Question: Which organ is most responsible for oxygen entering the blood stream?
(A) nose
(B) trachea
(C) bronchi
(D) lungs
| Answer: (D) lungs | Answer: (C) bronchi | Question: Which organ is most responsible for oxygen entering the blood stream?
(A) nose
(B) trachea
(C) bronchi
(D) lungs
Answer: (D) lungs |
NCEOGA2013_8_20 | Why is a healthy diet important? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"It maintains a constant body temperature.",
"It prevents damage to internal organs.",
"It makes oxygen for all the cells in the body.",
"It supplies the body’s needs for growth and energy."
]
} | D | Question: Why is a healthy diet important?
(A) It maintains a constant body temperature.
(B) It prevents damage to internal organs.
(C) It makes oxygen for all the cells in the body.
(D) It supplies the body’s needs for growth and energy.
| Answer: (D) It supplies the body’s needs for growth and energy. | Answer: (C) It makes oxygen for all the cells in the body. | Question: Why is a healthy diet important?
(A) It maintains a constant body temperature.
(B) It prevents damage to internal organs.
(C) It makes oxygen for all the cells in the body.
(D) It supplies the body’s needs for growth and energy.
Answer: (D) It supplies the body’s needs for growth and energy. |
Mercury_SC_402631 | In the human body, the breaking down of food into simple substances occurs in the | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"digestive system.",
"excretory system.",
"circulatory system.",
"respiratory system."
]
} | A | Question: In the human body, the breaking down of food into simple substances occurs in the
(A) digestive system.
(B) excretory system.
(C) circulatory system.
(D) respiratory system.
| Answer: (A) digestive system. | Answer: (B) excretory system. | Question: In the human body, the breaking down of food into simple substances occurs in the
(A) digestive system.
(B) excretory system.
(C) circulatory system.
(D) respiratory system.
Answer: (A) digestive system. |
Mercury_188650 | Which of the following processes is an important part of star formation? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"nuclear fusion",
"nuclear fission",
"molecular fusion",
"molecular fission"
]
} | A | Question: Which of the following processes is an important part of star formation?
(A) nuclear fusion
(B) nuclear fission
(C) molecular fusion
(D) molecular fission
| Answer: (A) nuclear fusion | Answer: (C) molecular fusion | Question: Which of the following processes is an important part of star formation?
(A) nuclear fusion
(B) nuclear fission
(C) molecular fusion
(D) molecular fission
Answer: (A) nuclear fusion |
Mercury_SC_409152 | Carlos puts a new battery into a radio. What does the battery supply to the radio that makes it turn on? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"friction",
"electricity",
"a sound wave",
"a magnetic field"
]
} | B | Question: Carlos puts a new battery into a radio. What does the battery supply to the radio that makes it turn on?
(A) friction
(B) electricity
(C) a sound wave
(D) a magnetic field
| Answer: (B) electricity | Answer: (A) friction | Question: Carlos puts a new battery into a radio. What does the battery supply to the radio that makes it turn on?
(A) friction
(B) electricity
(C) a sound wave
(D) a magnetic field
Answer: (B) electricity |
Mercury_7139983 | What may form as a direct result of a star collapsing? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"constellation",
"galaxy",
"protostar",
"supernova"
]
} | D | Question: What may form as a direct result of a star collapsing?
(A) constellation
(B) galaxy
(C) protostar
(D) supernova
| Answer: (D) supernova | Answer: (B) galaxy | Question: What may form as a direct result of a star collapsing?
(A) constellation
(B) galaxy
(C) protostar
(D) supernova
Answer: (D) supernova |
MCAS_2008_8_5708 | A shoe manufacturer randomly selects 10% of the production from each shift. Each of these shoes is checked to ensure that it is correctly made. What is this process called? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"quality control",
"product distribution",
"production selection",
"research and development"
]
} | A | Question: A shoe manufacturer randomly selects 10% of the production from each shift. Each of these shoes is checked to ensure that it is correctly made. What is this process called?
(A) quality control
(B) product distribution
(C) production selection
(D) research and development
| Answer: (A) quality control | Answer: (C) production selection | Question: A shoe manufacturer randomly selects 10% of the production from each shift. Each of these shoes is checked to ensure that it is correctly made. What is this process called?
(A) quality control
(B) product distribution
(C) production selection
(D) research and development
Answer: (A) quality control |
MSA_2012_5_36 | Some materials are electrical conductors. Which material best conducts electricity? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"copper",
"plastic",
"rubber",
"wood"
]
} | A | Question: Some materials are electrical conductors. Which material best conducts electricity?
(A) copper
(B) plastic
(C) rubber
(D) wood
| Answer: (A) copper | Answer: (B) plastic | Question: Some materials are electrical conductors. Which material best conducts electricity?
(A) copper
(B) plastic
(C) rubber
(D) wood
Answer: (A) copper |
Mercury_SC_408343 | Angela wants to report daily weather conditions. In which unit should Angela record the air temperature? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"degrees Celsius",
"centimeters",
"milliliters",
"grams"
]
} | A | Question: Angela wants to report daily weather conditions. In which unit should Angela record the air temperature?
(A) degrees Celsius
(B) centimeters
(C) milliliters
(D) grams
| Answer: (A) degrees Celsius | Answer: (B) centimeters | Question: Angela wants to report daily weather conditions. In which unit should Angela record the air temperature?
(A) degrees Celsius
(B) centimeters
(C) milliliters
(D) grams
Answer: (A) degrees Celsius |
Mercury_7113908 | Which organisms use the energy from the remains of dead animals and recycle the nutrients back into the environment? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"producers",
"herbivores",
"omnivores",
"decomposers"
]
} | D | Question: Which organisms use the energy from the remains of dead animals and recycle the nutrients back into the environment?
(A) producers
(B) herbivores
(C) omnivores
(D) decomposers
| Answer: (D) decomposers | Answer: (B) herbivores | Question: Which organisms use the energy from the remains of dead animals and recycle the nutrients back into the environment?
(A) producers
(B) herbivores
(C) omnivores
(D) decomposers
Answer: (D) decomposers |
OHAT_2007_5_8 | Which is the first step in a design process? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"Revise the solution.",
"Describe the problem.",
"Test the possible solutions.",
"Identify possible solutions."
]
} | B | Question: Which is the first step in a design process?
(A) Revise the solution.
(B) Describe the problem.
(C) Test the possible solutions.
(D) Identify possible solutions.
| Answer: (B) Describe the problem. | Answer: (D) Identify possible solutions. | Question: Which is the first step in a design process?
(A) Revise the solution.
(B) Describe the problem.
(C) Test the possible solutions.
(D) Identify possible solutions.
Answer: (B) Describe the problem. |
Mercury_7043803 | What type of chemical reaction occurs when the body breaks down fats and sugars that supply it with energy? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"endothermic",
"exothermic",
"electrical",
"physical"
]
} | B | Question: What type of chemical reaction occurs when the body breaks down fats and sugars that supply it with energy?
(A) endothermic
(B) exothermic
(C) electrical
(D) physical
| Answer: (B) exothermic | Answer: (A) endothermic | Question: What type of chemical reaction occurs when the body breaks down fats and sugars that supply it with energy?
(A) endothermic
(B) exothermic
(C) electrical
(D) physical
Answer: (B) exothermic |
Mercury_7222723 | Intense heat and pressure in Earth's crust can change sandstone into quartzite. During this metamorphosis, many properties of these rocks change. Which property of these rocks will most likely remain the same? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"mass",
"volume",
"crystal structure",
"particle shape"
]
} | A | Question: Intense heat and pressure in Earth's crust can change sandstone into quartzite. During this metamorphosis, many properties of these rocks change. Which property of these rocks will most likely remain the same?
(A) mass
(B) volume
(C) crystal structure
(D) particle shape
| Answer: (A) mass | Answer: (B) volume | Question: Intense heat and pressure in Earth's crust can change sandstone into quartzite. During this metamorphosis, many properties of these rocks change. Which property of these rocks will most likely remain the same?
(A) mass
(B) volume
(C) crystal structure
(D) particle shape
Answer: (A) mass |
NYSEDREGENTS_2006_8_40 | How do decomposers obtain their food? | {
"label": [
"1",
"2",
"3",
"4"
],
"text": [
"hunting and killing prey for food",
"changing carbon dioxide and water into food",
"absorbing food from dead organisms",
"producing food from oxygen and sunlight"
]
} | 3 | Question: How do decomposers obtain their food?
(1) hunting and killing prey for food
(2) changing carbon dioxide and water into food
(3) absorbing food from dead organisms
(4) producing food from oxygen and sunlight
| Answer: (3) absorbing food from dead organisms | Answer: (1) hunting and killing prey for food | Question: How do decomposers obtain their food?
(1) hunting and killing prey for food
(2) changing carbon dioxide and water into food
(3) absorbing food from dead organisms
(4) producing food from oxygen and sunlight
Answer: (3) absorbing food from dead organisms |
Mercury_177240 | A ball on a cart is moving at a rate of 2 m/s. The cart suddenly stops and the ball continues to travel in the same direction at the same speed. This is an example of the | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"law of gravity.",
"first law of motion.",
"second law of motion.",
"third law of motion."
]
} | B | Question: A ball on a cart is moving at a rate of 2 m/s. The cart suddenly stops and the ball continues to travel in the same direction at the same speed. This is an example of the
(A) law of gravity.
(B) first law of motion.
(C) second law of motion.
(D) third law of motion.
| Answer: (B) first law of motion. | Answer: (C) second law of motion. | Question: A ball on a cart is moving at a rate of 2 m/s. The cart suddenly stops and the ball continues to travel in the same direction at the same speed. This is an example of the
(A) law of gravity.
(B) first law of motion.
(C) second law of motion.
(D) third law of motion.
Answer: (B) first law of motion. |
Mercury_7105140 | Why is it important to have a large sample size in an investigation? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"to be able to compare results",
"to increase the validity of the data",
"to form the best conclusion",
"to ensure the procedure is followed"
]
} | B | Question: Why is it important to have a large sample size in an investigation?
(A) to be able to compare results
(B) to increase the validity of the data
(C) to form the best conclusion
(D) to ensure the procedure is followed
| Answer: (B) to increase the validity of the data | Answer: (A) to be able to compare results | Question: Why is it important to have a large sample size in an investigation?
(A) to be able to compare results
(B) to increase the validity of the data
(C) to form the best conclusion
(D) to ensure the procedure is followed
Answer: (B) to increase the validity of the data |
MCAS_1999_4_14 | Burt used a spoon to stir soup that was cooking on his stove. Which spoon will stay the coolest while he stirs? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"an iron spoon",
"an aluminum spoon",
"a wooden spoon",
"a silver spoon"
]
} | C | Question: Burt used a spoon to stir soup that was cooking on his stove. Which spoon will stay the coolest while he stirs?
(A) an iron spoon
(B) an aluminum spoon
(C) a wooden spoon
(D) a silver spoon
| Answer: (C) a wooden spoon | Answer: (D) a silver spoon | Question: Burt used a spoon to stir soup that was cooking on his stove. Which spoon will stay the coolest while he stirs?
(A) an iron spoon
(B) an aluminum spoon
(C) a wooden spoon
(D) a silver spoon
Answer: (C) a wooden spoon |
Mercury_7283763 | Which is a distinction between an epidemic and a pandemic? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"the symptoms of the disease",
"the geographical area affected",
"the species of organisms infected",
"the season in which the disease spreads"
]
} | B | Question: Which is a distinction between an epidemic and a pandemic?
(A) the symptoms of the disease
(B) the geographical area affected
(C) the species of organisms infected
(D) the season in which the disease spreads
| Answer: (B) the geographical area affected | Answer: (A) the symptoms of the disease | Question: Which is a distinction between an epidemic and a pandemic?
(A) the symptoms of the disease
(B) the geographical area affected
(C) the species of organisms infected
(D) the season in which the disease spreads
Answer: (B) the geographical area affected |
Mercury_7130795 | When two bumper cars collide, some of the kinetic energy of the cars is transformed. Which form of energy is most likely formed as a result of this collision? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"electrical",
"electromagnetic",
"magnetic",
"sound"
]
} | D | Question: When two bumper cars collide, some of the kinetic energy of the cars is transformed. Which form of energy is most likely formed as a result of this collision?
(A) electrical
(B) electromagnetic
(C) magnetic
(D) sound
| Answer: (D) sound | Answer: (A) electrical | Question: When two bumper cars collide, some of the kinetic energy of the cars is transformed. Which form of energy is most likely formed as a result of this collision?
(A) electrical
(B) electromagnetic
(C) magnetic
(D) sound
Answer: (D) sound |
ACTAAP_2015_5_5 | Which statement describes all matter? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"All matter contains carbon.",
"All matter contains oxygen.",
"All matter is made up of cells.",
"All matter is made up of atoms."
]
} | D | Question: Which statement describes all matter?
(A) All matter contains carbon.
(B) All matter contains oxygen.
(C) All matter is made up of cells.
(D) All matter is made up of atoms.
| Answer: (D) All matter is made up of atoms. | Answer: (C) All matter is made up of cells. | Question: Which statement describes all matter?
(A) All matter contains carbon.
(B) All matter contains oxygen.
(C) All matter is made up of cells.
(D) All matter is made up of atoms.
Answer: (D) All matter is made up of atoms. |
Mercury_SC_402126 | Carbon dioxide is removed from Earth's atmosphere by | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"animal respiration.",
"decaying organisms.",
"plant photosynthesis.",
"burning fossil fuels."
]
} | C | Question: Carbon dioxide is removed from Earth's atmosphere by
(A) animal respiration.
(B) decaying organisms.
(C) plant photosynthesis.
(D) burning fossil fuels.
| Answer: (C) plant photosynthesis. | Answer: (A) animal respiration. | Question: Carbon dioxide is removed from Earth's atmosphere by
(A) animal respiration.
(B) decaying organisms.
(C) plant photosynthesis.
(D) burning fossil fuels.
Answer: (C) plant photosynthesis. |
Mercury_SC_408974 | A water company uses lab tests on the water supply before sending the water through pipes to people's homes. How do these lab tests help people? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"by adding minerals and nutrients to the water",
"by checking the water to make sure it is safe to drink",
"by filtering chemicals and organisms out of the water",
"by stopping harmful substances from entering the water"
]
} | B | Question: A water company uses lab tests on the water supply before sending the water through pipes to people's homes. How do these lab tests help people?
(A) by adding minerals and nutrients to the water
(B) by checking the water to make sure it is safe to drink
(C) by filtering chemicals and organisms out of the water
(D) by stopping harmful substances from entering the water
| Answer: (B) by checking the water to make sure it is safe to drink | Answer: (D) by stopping harmful substances from entering the water | Question: A water company uses lab tests on the water supply before sending the water through pipes to people's homes. How do these lab tests help people?
(A) by adding minerals and nutrients to the water
(B) by checking the water to make sure it is safe to drink
(C) by filtering chemicals and organisms out of the water
(D) by stopping harmful substances from entering the water
Answer: (B) by checking the water to make sure it is safe to drink |
Mercury_SC_402158 | What safety rule is most important for students to follow when working with acids and bases? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"wear nose plugs",
"put on safety goggles",
"put away all lab supplies",
"wear heavy cloth gloves"
]
} | B | Question: What safety rule is most important for students to follow when working with acids and bases?
(A) wear nose plugs
(B) put on safety goggles
(C) put away all lab supplies
(D) wear heavy cloth gloves
| Answer: (B) put on safety goggles | Answer: (A) wear nose plugs | Question: What safety rule is most important for students to follow when working with acids and bases?
(A) wear nose plugs
(B) put on safety goggles
(C) put away all lab supplies
(D) wear heavy cloth gloves
Answer: (B) put on safety goggles |
TIMSS_2003_8_pg32 | A person in a dark room looking through a window can clearly see a person outside in the daylight. But a person outside cannot see the person inside. Why does this happen? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"There is not enough light being reflected off the person in the room.",
"Light rays cannot pass through a window twice.",
"Outside light does not pass through windows.",
"Sunlight is not as intense as other sources of light."
]
} | A | Question: A person in a dark room looking through a window can clearly see a person outside in the daylight. But a person outside cannot see the person inside. Why does this happen?
(A) There is not enough light being reflected off the person in the room.
(B) Light rays cannot pass through a window twice.
(C) Outside light does not pass through windows.
(D) Sunlight is not as intense as other sources of light.
| Answer: (A) There is not enough light being reflected off the person in the room. | Answer: (C) Outside light does not pass through windows. | Question: A person in a dark room looking through a window can clearly see a person outside in the daylight. But a person outside cannot see the person inside. Why does this happen?
(A) There is not enough light being reflected off the person in the room.
(B) Light rays cannot pass through a window twice.
(C) Outside light does not pass through windows.
(D) Sunlight is not as intense as other sources of light.
Answer: (A) There is not enough light being reflected off the person in the room. |
MDSA_2007_8_18 | Many processes on Earth occur at or near tectonic plate boundaries. Which geological events are most common along tectonic plate boundaries? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"erosion and deposition",
"hurricanes and tornadoes",
"earthquakes and volcanoes",
"tidal waves and sedimentation"
]
} | C | Question: Many processes on Earth occur at or near tectonic plate boundaries. Which geological events are most common along tectonic plate boundaries?
(A) erosion and deposition
(B) hurricanes and tornadoes
(C) earthquakes and volcanoes
(D) tidal waves and sedimentation
| Answer: (C) earthquakes and volcanoes | Answer: (A) erosion and deposition | Question: Many processes on Earth occur at or near tectonic plate boundaries. Which geological events are most common along tectonic plate boundaries?
(A) erosion and deposition
(B) hurricanes and tornadoes
(C) earthquakes and volcanoes
(D) tidal waves and sedimentation
Answer: (C) earthquakes and volcanoes |
MEAP_2005_8_41 | Two pool (billiard) balls collide, causing each to move in a different direction. Eventually, both come to a stop. The most important factor in causing them to stop is | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"balance.",
"friction.",
"gravity.",
"size."
]
} | B | Question: Two pool (billiard) balls collide, causing each to move in a different direction. Eventually, both come to a stop. The most important factor in causing them to stop is
(A) balance.
(B) friction.
(C) gravity.
(D) size.
| Answer: (B) friction. | Answer: (D) size. | Question: Two pool (billiard) balls collide, causing each to move in a different direction. Eventually, both come to a stop. The most important factor in causing them to stop is
(A) balance.
(B) friction.
(C) gravity.
(D) size.
Answer: (B) friction. |
Mercury_7085348 | Which of these provides the best evidence that the environment of Earth has changed over millions of years? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"active migration of sand dunes",
"polished appearance of rock surfaces",
"marine fossils found in mountains",
"bones of animals found on the ground"
]
} | C | Question: Which of these provides the best evidence that the environment of Earth has changed over millions of years?
(A) active migration of sand dunes
(B) polished appearance of rock surfaces
(C) marine fossils found in mountains
(D) bones of animals found on the ground
| Answer: (C) marine fossils found in mountains | Answer: (D) bones of animals found on the ground | Question: Which of these provides the best evidence that the environment of Earth has changed over millions of years?
(A) active migration of sand dunes
(B) polished appearance of rock surfaces
(C) marine fossils found in mountains
(D) bones of animals found on the ground
Answer: (C) marine fossils found in mountains |
AKDE&ED_2012_4_27 | Which physical characteristic do some organisms have that helps them survive in the Arctic? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"growing tall to hide in trees",
"changing fur color to hide from predators",
"developing large paws to protect themselves from the wind",
"producing shallow root systems to protect themselves from the cold air"
]
} | B | Question: Which physical characteristic do some organisms have that helps them survive in the Arctic?
(A) growing tall to hide in trees
(B) changing fur color to hide from predators
(C) developing large paws to protect themselves from the wind
(D) producing shallow root systems to protect themselves from the cold air
| Answer: (B) changing fur color to hide from predators | Answer: (A) growing tall to hide in trees | Question: Which physical characteristic do some organisms have that helps them survive in the Arctic?
(A) growing tall to hide in trees
(B) changing fur color to hide from predators
(C) developing large paws to protect themselves from the wind
(D) producing shallow root systems to protect themselves from the cold air
Answer: (B) changing fur color to hide from predators |
MCAS_2006_9_23 | Which of the following occurs during photosynthesis? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"CO2 is used to produce water.",
"CO2 is absorbed by mitochondria.",
"CO2 and H2O are converted to carbohydrates.",
"CO2 and H2O are combined into carbonic acid."
]
} | C | Question: Which of the following occurs during photosynthesis?
(A) CO2 is used to produce water.
(B) CO2 is absorbed by mitochondria.
(C) CO2 and H2O are converted to carbohydrates.
(D) CO2 and H2O are combined into carbonic acid.
| Answer: (C) CO2 and H2O are converted to carbohydrates. | Answer: (D) CO2 and H2O are combined into carbonic acid. | Question: Which of the following occurs during photosynthesis?
(A) CO2 is used to produce water.
(B) CO2 is absorbed by mitochondria.
(C) CO2 and H2O are converted to carbohydrates.
(D) CO2 and H2O are combined into carbonic acid.
Answer: (C) CO2 and H2O are converted to carbohydrates. |
Mercury_7098998 | A common characteristic of all living things is that they | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"breathe air.",
"walk upright.",
"are made of cells.",
"use sunlight for growth."
]
} | C | Question: A common characteristic of all living things is that they
(A) breathe air.
(B) walk upright.
(C) are made of cells.
(D) use sunlight for growth.
| Answer: (C) are made of cells. | Answer: (A) breathe air. | Question: A common characteristic of all living things is that they
(A) breathe air.
(B) walk upright.
(C) are made of cells.
(D) use sunlight for growth.
Answer: (C) are made of cells. |
Mercury_7218208 | In the solar system, moons orbit planets. Which of these do planets orbit? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"the Sun",
"Halley's comet",
"the asteroid belt",
"a black hole"
]
} | A | Question: In the solar system, moons orbit planets. Which of these do planets orbit?
(A) the Sun
(B) Halley's comet
(C) the asteroid belt
(D) a black hole
| Answer: (A) the Sun | Answer: (C) the asteroid belt | Question: In the solar system, moons orbit planets. Which of these do planets orbit?
(A) the Sun
(B) Halley's comet
(C) the asteroid belt
(D) a black hole
Answer: (A) the Sun |
Mercury_7205433 | Visible light is which type of wave? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"seismic",
"mechanical",
"longitudinal",
"electromagnetic"
]
} | D | Question: Visible light is which type of wave?
(A) seismic
(B) mechanical
(C) longitudinal
(D) electromagnetic
| Answer: (D) electromagnetic | Answer: (B) mechanical | Question: Visible light is which type of wave?
(A) seismic
(B) mechanical
(C) longitudinal
(D) electromagnetic
Answer: (D) electromagnetic |
Mercury_7137708 | In some national parks, controlled fires are maintained by firefighters. Which of these is one of the major reasons for using controlled burns to maintain certain ecosystems? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"to give nonnative plants a chance to colonize the region",
"to prevent the spread of pests that cause damage to plants",
"to replace matured plants with saplings of the same species",
"to rid the forest floor of accumulated deadwood and brush"
]
} | D | Question: In some national parks, controlled fires are maintained by firefighters. Which of these is one of the major reasons for using controlled burns to maintain certain ecosystems?
(A) to give nonnative plants a chance to colonize the region
(B) to prevent the spread of pests that cause damage to plants
(C) to replace matured plants with saplings of the same species
(D) to rid the forest floor of accumulated deadwood and brush
| Answer: (D) to rid the forest floor of accumulated deadwood and brush | Answer: (B) to prevent the spread of pests that cause damage to plants | Question: In some national parks, controlled fires are maintained by firefighters. Which of these is one of the major reasons for using controlled burns to maintain certain ecosystems?
(A) to give nonnative plants a chance to colonize the region
(B) to prevent the spread of pests that cause damage to plants
(C) to replace matured plants with saplings of the same species
(D) to rid the forest floor of accumulated deadwood and brush
Answer: (D) to rid the forest floor of accumulated deadwood and brush |
MCAS_2016_5_3 | Which of the following actions is most likely part of a test to find the hardness of a mineral sample? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"heating the sample on a hot plate",
"scratching the sample with a nail",
"hitting the sample with a hammer",
"shining a bright light on the sample"
]
} | B | Question: Which of the following actions is most likely part of a test to find the hardness of a mineral sample?
(A) heating the sample on a hot plate
(B) scratching the sample with a nail
(C) hitting the sample with a hammer
(D) shining a bright light on the sample
| Answer: (B) scratching the sample with a nail | Answer: (C) hitting the sample with a hammer | Question: Which of the following actions is most likely part of a test to find the hardness of a mineral sample?
(A) heating the sample on a hot plate
(B) scratching the sample with a nail
(C) hitting the sample with a hammer
(D) shining a bright light on the sample
Answer: (B) scratching the sample with a nail |
MEA_2010_8_3 | In Costa Rica a small tree, the acacia, provides shelter and food for ants. The ants protect the acacia by removing other insects and vines that might harm it. Which term best describes the relationship between the acacia and the ants? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"competition",
"mutualism",
"parasitism",
"predation"
]
} | B | Question: In Costa Rica a small tree, the acacia, provides shelter and food for ants. The ants protect the acacia by removing other insects and vines that might harm it. Which term best describes the relationship between the acacia and the ants?
(A) competition
(B) mutualism
(C) parasitism
(D) predation
| Answer: (B) mutualism | Answer: (C) parasitism | Question: In Costa Rica a small tree, the acacia, provides shelter and food for ants. The ants protect the acacia by removing other insects and vines that might harm it. Which term best describes the relationship between the acacia and the ants?
(A) competition
(B) mutualism
(C) parasitism
(D) predation
Answer: (B) mutualism |
NYSEDREGENTS_2005_4_25 | A car skids along the road and smoke appears to be coming from under the tires. The heat that produces the smoke is caused by | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"magnetism",
"sound",
"light",
"friction"
]
} | D | Question: A car skids along the road and smoke appears to be coming from under the tires. The heat that produces the smoke is caused by
(A) magnetism
(B) sound
(C) light
(D) friction
| Answer: (D) friction | Answer: (C) light | Question: A car skids along the road and smoke appears to be coming from under the tires. The heat that produces the smoke is caused by
(A) magnetism
(B) sound
(C) light
(D) friction
Answer: (D) friction |
Mercury_SC_415403 | A glacier sometimes leaves behind large chunks of ice. What is left in the ground when these chunks of ice melt? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"a valley",
"a kettle",
"a crater",
"a sinkhole"
]
} | B | Question: A glacier sometimes leaves behind large chunks of ice. What is left in the ground when these chunks of ice melt?
(A) a valley
(B) a kettle
(C) a crater
(D) a sinkhole
| Answer: (B) a kettle | Answer: (D) a sinkhole | Question: A glacier sometimes leaves behind large chunks of ice. What is left in the ground when these chunks of ice melt?
(A) a valley
(B) a kettle
(C) a crater
(D) a sinkhole
Answer: (B) a kettle |
Mercury_7099435 | A student uses a high-efficiency gasoline lawnmower to cut grass. The term "high efficiency" is used to indicate that the lawnmower | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"cuts better than other lawnmowers.",
"is easier to use than other lawnmowers.",
"uses less energy than other lawnmowers.",
"requires more fuel than other lawnmowers."
]
} | C | Question: A student uses a high-efficiency gasoline lawnmower to cut grass. The term "high efficiency" is used to indicate that the lawnmower
(A) cuts better than other lawnmowers.
(B) is easier to use than other lawnmowers.
(C) uses less energy than other lawnmowers.
(D) requires more fuel than other lawnmowers.
| Answer: (C) uses less energy than other lawnmowers. | Answer: (B) is easier to use than other lawnmowers. | Question: A student uses a high-efficiency gasoline lawnmower to cut grass. The term "high efficiency" is used to indicate that the lawnmower
(A) cuts better than other lawnmowers.
(B) is easier to use than other lawnmowers.
(C) uses less energy than other lawnmowers.
(D) requires more fuel than other lawnmowers.
Answer: (C) uses less energy than other lawnmowers. |
NYSEDREGENTS_2005_8_37 | Which example would result in new cells that are most different from the parent cells? | {
"label": [
"1",
"2",
"3",
"4"
],
"text": [
"yeast cells splitting into new cells",
"bacteria cells dividing into new cells",
"skin cells dividing to produce more skin cells",
"sperm and egg cells uniting to produce fertilized egg cells"
]
} | 4 | Question: Which example would result in new cells that are most different from the parent cells?
(1) yeast cells splitting into new cells
(2) bacteria cells dividing into new cells
(3) skin cells dividing to produce more skin cells
(4) sperm and egg cells uniting to produce fertilized egg cells
| Answer: (4) sperm and egg cells uniting to produce fertilized egg cells | Answer: (1) yeast cells splitting into new cells | Question: Which example would result in new cells that are most different from the parent cells?
(1) yeast cells splitting into new cells
(2) bacteria cells dividing into new cells
(3) skin cells dividing to produce more skin cells
(4) sperm and egg cells uniting to produce fertilized egg cells
Answer: (4) sperm and egg cells uniting to produce fertilized egg cells |
VASoL_2007_3_23 | A dog gets the energy it needs to run from ___. | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"the air",
"the Sun",
"food",
"water"
]
} | C | Question: A dog gets the energy it needs to run from ___.
(A) the air
(B) the Sun
(C) food
(D) water
| Answer: (C) food | Answer: (A) the air | Question: A dog gets the energy it needs to run from ___.
(A) the air
(B) the Sun
(C) food
(D) water
Answer: (C) food |
Mercury_7252770 | Certain flowers will open for twelve hours and then close. Which stimulus do the flowers respond to when they open and then when they close for that time period? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"light levels",
"moon phases",
"seasonal temperatures",
"carbon dioxide levels"
]
} | A | Question: Certain flowers will open for twelve hours and then close. Which stimulus do the flowers respond to when they open and then when they close for that time period?
(A) light levels
(B) moon phases
(C) seasonal temperatures
(D) carbon dioxide levels
| Answer: (A) light levels | Answer: (C) seasonal temperatures | Question: Certain flowers will open for twelve hours and then close. Which stimulus do the flowers respond to when they open and then when they close for that time period?
(A) light levels
(B) moon phases
(C) seasonal temperatures
(D) carbon dioxide levels
Answer: (A) light levels |
TIMSS_2007_4_pg30 | Smoking harms the body in many ways. It is most harmful to which organ? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"lung",
"kidney",
"liver",
"stomach"
]
} | A | Question: Smoking harms the body in many ways. It is most harmful to which organ?
(A) lung
(B) kidney
(C) liver
(D) stomach
| Answer: (A) lung | Answer: (C) liver | Question: Smoking harms the body in many ways. It is most harmful to which organ?
(A) lung
(B) kidney
(C) liver
(D) stomach
Answer: (A) lung |
Mercury_7110040 | In 1609, Galileo Galilei used lenses to construct the first telescope. His telescope allowed him to observe many objects in space. His invention of the telescope and the data he gathered directly contributed to the understanding that | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"Earth is the center of the universe.",
"the planets revolve around the Sun.",
"all stars eventually explode.",
"the universe has many galaxies."
]
} | B | Question: In 1609, Galileo Galilei used lenses to construct the first telescope. His telescope allowed him to observe many objects in space. His invention of the telescope and the data he gathered directly contributed to the understanding that
(A) Earth is the center of the universe.
(B) the planets revolve around the Sun.
(C) all stars eventually explode.
(D) the universe has many galaxies.
| Answer: (B) the planets revolve around the Sun. | Answer: (D) the universe has many galaxies. | Question: In 1609, Galileo Galilei used lenses to construct the first telescope. His telescope allowed him to observe many objects in space. His invention of the telescope and the data he gathered directly contributed to the understanding that
(A) Earth is the center of the universe.
(B) the planets revolve around the Sun.
(C) all stars eventually explode.
(D) the universe has many galaxies.
Answer: (B) the planets revolve around the Sun. |
NYSEDREGENTS_2004_8_14 | The energy obtained from food is measured in units called | {
"label": [
"1",
"2",
"3",
"4"
],
"text": [
"watts",
"Calories",
"degrees",
"pounds"
]
} | 2 | Question: The energy obtained from food is measured in units called
(1) watts
(2) Calories
(3) degrees
(4) pounds
| Answer: (2) Calories | Answer: (4) pounds | Question: The energy obtained from food is measured in units called
(1) watts
(2) Calories
(3) degrees
(4) pounds
Answer: (2) Calories |
Mercury_7138600 | Which part of the body works closely with the digestive system to transport nutrients to the cells? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"lungs",
"blood",
"kidneys",
"esophagus"
]
} | B | Question: Which part of the body works closely with the digestive system to transport nutrients to the cells?
(A) lungs
(B) blood
(C) kidneys
(D) esophagus
| Answer: (B) blood | Answer: (D) esophagus | Question: Which part of the body works closely with the digestive system to transport nutrients to the cells?
(A) lungs
(B) blood
(C) kidneys
(D) esophagus
Answer: (B) blood |
NYSEDREGENTS_2016_4_2 | An example of a learned behavior is | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"driving a car",
"having blue eyes",
"shivering in the cold",
"breathing air"
]
} | A | Question: An example of a learned behavior is
(A) driving a car
(B) having blue eyes
(C) shivering in the cold
(D) breathing air
| Answer: (A) driving a car | Answer: (D) breathing air | Question: An example of a learned behavior is
(A) driving a car
(B) having blue eyes
(C) shivering in the cold
(D) breathing air
Answer: (A) driving a car |
CSZ_2009_8_CSZ20770 | Iron oxides, such as rust, form when iron metal reacts with oxygen in the air. What are the chemical symbols for the two elements found in iron oxide? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"I and O",
"Ir and O",
"Fe and O",
"Pb and O"
]
} | C | Question: Iron oxides, such as rust, form when iron metal reacts with oxygen in the air. What are the chemical symbols for the two elements found in iron oxide?
(A) I and O
(B) Ir and O
(C) Fe and O
(D) Pb and O
| Answer: (C) Fe and O | Answer: (A) I and O | Question: Iron oxides, such as rust, form when iron metal reacts with oxygen in the air. What are the chemical symbols for the two elements found in iron oxide?
(A) I and O
(B) Ir and O
(C) Fe and O
(D) Pb and O
Answer: (C) Fe and O |
Mercury_7181318 | When water evaporates from Earth's surface into the atmosphere, its molecules enter the gas state. What change in this gas causes molecules to condense into the small water droplets that form clouds? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"The mass is reduced.",
"The volume is increased.",
"The temperature is reduced.",
"The pressure is increased."
]
} | C | Question: When water evaporates from Earth's surface into the atmosphere, its molecules enter the gas state. What change in this gas causes molecules to condense into the small water droplets that form clouds?
(A) The mass is reduced.
(B) The volume is increased.
(C) The temperature is reduced.
(D) The pressure is increased.
| Answer: (C) The temperature is reduced. | Answer: (A) The mass is reduced. | Question: When water evaporates from Earth's surface into the atmosphere, its molecules enter the gas state. What change in this gas causes molecules to condense into the small water droplets that form clouds?
(A) The mass is reduced.
(B) The volume is increased.
(C) The temperature is reduced.
(D) The pressure is increased.
Answer: (C) The temperature is reduced. |
Mercury_7010080 | Which process directly adds carbon into the atmosphere? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"increasing plant populations",
"decreasing animal populations",
"burning fossil fuels",
"forming sedimentary rock"
]
} | C | Question: Which process directly adds carbon into the atmosphere?
(A) increasing plant populations
(B) decreasing animal populations
(C) burning fossil fuels
(D) forming sedimentary rock
| Answer: (C) burning fossil fuels | Answer: (D) forming sedimentary rock | Question: Which process directly adds carbon into the atmosphere?
(A) increasing plant populations
(B) decreasing animal populations
(C) burning fossil fuels
(D) forming sedimentary rock
Answer: (C) burning fossil fuels |
NCEOGA_2013_8_37 | Scientists think that dolphins and whales may have evolved from a common ancestor. What evidence supports this hypothesis? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"They swim the same way.",
"They eat the same food.",
"They live in the same area of the ocean.",
"They have similar anatomies."
]
} | D | Question: Scientists think that dolphins and whales may have evolved from a common ancestor. What evidence supports this hypothesis?
(A) They swim the same way.
(B) They eat the same food.
(C) They live in the same area of the ocean.
(D) They have similar anatomies.
| Answer: (D) They have similar anatomies. | Answer: (A) They swim the same way. | Question: Scientists think that dolphins and whales may have evolved from a common ancestor. What evidence supports this hypothesis?
(A) They swim the same way.
(B) They eat the same food.
(C) They live in the same area of the ocean.
(D) They have similar anatomies.
Answer: (D) They have similar anatomies. |
Mercury_7188563 | A particular organism is able to survive in an environment due to a thick layer of fat beneath its skin. In which situation would the layer of fat most likely be a survival advantage? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"swimming in arctic waters",
"eating large amounts of fish",
"being preyed upon by other animals",
"living in an environment with high temperatures"
]
} | A | Question: A particular organism is able to survive in an environment due to a thick layer of fat beneath its skin. In which situation would the layer of fat most likely be a survival advantage?
(A) swimming in arctic waters
(B) eating large amounts of fish
(C) being preyed upon by other animals
(D) living in an environment with high temperatures
| Answer: (A) swimming in arctic waters | Answer: (B) eating large amounts of fish | Question: A particular organism is able to survive in an environment due to a thick layer of fat beneath its skin. In which situation would the layer of fat most likely be a survival advantage?
(A) swimming in arctic waters
(B) eating large amounts of fish
(C) being preyed upon by other animals
(D) living in an environment with high temperatures
Answer: (A) swimming in arctic waters |