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7 values
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4 values
ARC-Easy
arc_04_00884
Sharpening a pencil and tearing paper are examples of physical changes. Which statement describes why these are physical changes?
[ "There is a change in how the objects are used.", "There is a change in the appearance of the objects.", "There is a change in the materials from which the objects are made.", "There is a change in both the appearance of the objects and the materials from which they are made." ]
B
math_qa
mathqa_03_01533
if the average ( arithmetic mean ) of ( 2 a + 16 ) and ( 3 a - 8 ) is 79 , what is the value of a ?
[ "25", "30", "28", "36" ]
B
sciq
sciq_01_07182
Size is a general feature of cell structure that relates to?
[ "timing", "activation", "instance", "function" ]
D
openbookqa
obqa_02_01145
Snowfall takes place during the winter in what area?
[ "Arctic", "Atlantic", "Rain forest", "Tropics" ]
A
ARC-Easy
arc_04_00001
Lichens are symbiotic organisms made of green algae and fungi. What do the green algae supply to the fungi in this symbiotic relationship?
[ "carbon dioxide", "food", "protection", "water" ]
B
math_qa
mathqa_03_01115
a train leaves mumabai at 9 am at a speed of 30 kmph . after one hour , another train leaves mumbai in the same direction as that of the first train at a speed of 60 kmph . when and at what distance from mumbai do the two trains meet ?
[ "27", "279", "60", "278" ]
C
sciq
sciq_01_08803
Where in the lungs does gas exchange between the air and blood takes place?
[ "ganglion", "left lobe", "alveoli", "bronchial tube" ]
C
openbookqa
obqa_02_01335
If the earth were small enough to put on a plate and serve up for dinner, the being eating it would get mouthfuls of
[ "stew", "towels", "stone", "corn" ]
C
math_qa
mathqa_03_02811
working together , jose and jane can complete an assigned task in 30 days . however , if jose worked alone and complete half the work and then jane takes over the task and completes the second half of the task , the task will be completed in 45 days . how long will jose take to complete the task if he worked alone ? as...
[ "90 days", "30 days", "60 days", "65 days" ]
A
openbookqa
obqa_02_02231
If a person has a respiratory system then they are able to remove from a room
[ "time of day", "all warmth", "the paint color", "breathable gas" ]
D
openbookqa
obqa_02_02377
Which of the following would likely use a compass to reach their destination?
[ "a taxi driver", "a middle-schooler", "a dog", "a 1700's pirate" ]
D
math_qa
mathqa_03_05036
the ages of two persons differ by 16 years . if 6 years agao , the elder one be 3 times as old as the younger one , find their present ages .
[ "20 years .", "30 years .", "40 years .", "50 years ." ]
B
openbookqa
obqa_02_02209
An ivory page will be able to
[ "feed a family", "make some money", "reflect all light", "eat a cookie" ]
C
openbookqa
obqa_02_03225
deserts are known for having what type of climates?
[ "scorching", "comfortable", "average temps", "lush" ]
A
openbookqa
obqa_02_00763
Standing in a canyon and yelling your name
[ "will cause the canyon to shake", "will cause your name to reverberate thru the canyon", "will cause complete silence", "will cause animals to run up to you" ]
B
sciq
sciq_01_06588
In which process do signaling molecules from embryonic cells cause transcriptional changes in nearby target cells?
[ "induction", "maturation", "orientation", "replication" ]
A
sciq
sciq_01_01030
A yolk sac replaces what structure for nourishing a marsupial embryo?
[ "glucose", "placenta", "uterus", "Stomach" ]
B
math_qa
mathqa_03_04875
two different primes may be said torhymearound an integer if they are the same distance from the integer on the number line . for instance , 3 and 7 rhyme around 5 . what integer t between 1 and 20 , inclusive , has the greatest number of distinct rhyming primes around it ?
[ "12", "15", "17", "t = 18" ]
D
openbookqa
obqa_02_02565
Moles are underground a lot of the time, and since few animals live there, they are unlikely to be
[ "dirty", "killed by others", "in dirt", "near worms" ]
B
openbookqa
obqa_02_03126
which of these has the most similar component as the earth itself?
[ "the stone in the yard", "a loaf of bread", "a can of soup", "a glass of water" ]
A
sciq
sciq_01_09385
The word fungus comes from the latin word for what?
[ "spore", "vegetable", "mushroom", "mold" ]
C
sciq
sciq_01_07711
What cycle is the second stage of cellular respiration?
[ "electron transport chain", "krebs cycle", "glycolysis", "sodium potassium pump" ]
B
sciq
sciq_01_05257
The duodenum is the first and the shortest part of what, and is where most chemical digestion takes place?
[ "stomach", "rectum", "large intestine", "small intestine" ]
D
openbookqa
obqa_02_02047
Liz's 72 Mustang stopped on the highway because it had run out of fuel. What does she need?
[ "an available electrical outlet", "A product derived from oil", "a clean solar panel", "a new set of spark plugs" ]
B
openbookqa
obqa_02_03834
Sound pulses helps dolphins
[ "satisfy women", "find God", "find nourishment", "find ibexes" ]
C
openbookqa
obqa_02_04646
In order for a crane to operate properly it requires
[ "sand", "the wind", "solar power", "a fulcrum" ]
D
ARC-Challenge
arc_04_02502
Which of the following distinguishes the organisms in the kingdom Fungi from other eukaryotic organisms?
[ "Fungi are unicellular.", "Fungi reproduce sexually.", "Fungi obtain nutrients by absorption.", "Fungi make food through photosynthesis." ]
C
ARC-Challenge
arc_04_02382
When it rains, some animals will ___.
[ "hibernate for the season", "migrate to warmer climates", "change their body covering", "move to seek shelter" ]
D
sciq
sciq_01_06544
What is the enclosed, fluid-filled membrane that surrounds and protects the fetus and is attached to the placenta?
[ "umbilical sac", "epithelial sac", "womb", "amniotic sac" ]
D
sciq
sciq_01_07361
Kinetic energy is energy of this?
[ "gravity", "food", "speed", "motion" ]
D
math_qa
mathqa_03_04969
in a group of cows and chickens , the number of legs was 14 more than twice the number of heads . the number of cows was :
[ "3", "5", "9", "7" ]
D
ARC-Easy
arc_04_00488
Which of these is a freshwater reservoir?
[ "Gulf of Mexico", "Pacific Ocean", "Atlantic tidal basin", "Antarctic polar ice" ]
D
sciq
sciq_01_08627
What type of molecules are secreted by the cell in local signaling?
[ "negaitive molecules", "word molecules", "messenger molecules", "sleeping molecules" ]
C
sciq
sciq_01_04732
What kind of a resource is soil, for human purposes?
[ "emanates resource", "guarana resource", "renewable resource", "nonrenewable resource" ]
D
ARC-Easy
arc_04_01459
Aluminum is an element. Which of the following best describes the smallest particle of aluminum that retains all the properties of aluminum?
[ "a molecule", "an atom", "a proton", "an electron" ]
B
openbookqa
obqa_02_00877
powered on lightbulbs burst with cold water because they
[ "electricity and water repel each other", "the inside is also cool", "the water starts to boil", "the inside is hot" ]
D
sciq
sciq_01_00126
The difference between the theoretical half-reaction reduction potential and the actual voltage required is called what?
[ "excess", "overcharge", "resistance", "overpotential" ]
D
openbookqa
obqa_02_04216
An amphibian has what temperature blood?
[ "toasty", "chilly", "hot", "burning" ]
B
sciq
sciq_01_10133
What is formed when an enzyme binds its substrate?
[ "lock and key model", "enzyme - substrate complex", "nucleus - substrate complex", "vessel - substrate complex" ]
B
math_qa
mathqa_03_01819
harkamal purchased 8 kg of grapes at the rate of 70 per kg and 9 kg of mangoes at the rate of 55 per kg . how much amount did he pay to the shopkeeper ?
[ "1000", "1055", "1065", "1075" ]
B
sciq
sciq_01_10484
What is the name for the nonliving parts of ecosystems?
[ "nucleic factors", "diverse factors", "abiotic factors", "Dead factors" ]
C
openbookqa
obqa_02_03756
One of the reasons some species go extinct is because predators
[ "have school with them", "tickle and cuddle them", "murder too many of them", "go dancing with them" ]
C
openbookqa
obqa_02_00943
The skeletal system protects
[ "pancreas", "toenails", "eyes", "hair" ]
A
sciq
sciq_01_03942
Which cells change the accessibility, transcription, or translation of a gene?
[ "endogenous", "eukaryotic", "prokaryotic", "ribosomes" ]
B
ARC-Challenge
arc_04_02731
Students want to plant a lemon tree at their school, but the cold winter temperatures in Massachusetts would kill the tree. Which of the following is the best solution to this problem?
[ "planting several lemon trees together in a row", "building a greenhouse to shelter the lemon tree", "giving the lemon tree extra fertilizer in the winter", "tying a stake to the lemon tree for support during the winter" ]
B
math_qa
mathqa_03_02349
a case of 12 rolls of paper towels sells for $ 9 . the cost of one roll sold individually is $ 1 . what is the percent q of savings per roll for the 12 - roll package over the cost of 12 rolls purchased individually ?
[ "9 %", "11 %", "15 %", "25 %" ]
D
math_qa
mathqa_03_02646
for each 6 - month period during a light bulb ' s life span , the odds of it not burning out from over - use are half what they were in the previous 6 - month period . if the odds of a light bulb burning out during the first 6 - month period following its purchase are 1 / 5 , what are the odds of it burning out during ...
[ "5 / 27", "2 / 9", "1 / 2", "4 / 9" ]
C
sciq
sciq_01_04304
Rna is especially important during synthesis of what?
[ "mitochondria", "sulfur", "protein", "glucose" ]
C
sciq
sciq_01_10119
What type of machines generally have lower efficiency but greater mechanical advantage?
[ "compound machines", "radical machines", "calculation machines", "simple machines" ]
A
openbookqa
obqa_02_02510
If a kitten takes in nutriment
[ "it will break down", "it will be poisoned", "it will be energized", "it will get sick" ]
C
ARC-Easy
arc_04_00603
What is the primary job of red blood cells?
[ "transport oxygen", "remove waste", "fight disease", "allow reproduction" ]
A
sciq
sciq_01_02455
The combined magnetic force of the magnetized wire coil and iron bar makes an electromagnet what?
[ "very heavy", "Very light", "very strong", "very reduced" ]
C
math_qa
mathqa_03_02820
heinz produces tomato puree by boiling tomato juice . the tomato puree has only 20 % water while the tomato juice has 90 % water . how many liters of tomato puree will be obtained from 30 litres of tomato juice ?
[ "3.75 liters .", "2.5 liters .", "8.5 liters .", "2.6 liters ." ]
A
sciq
sciq_01_07671
Of course, a net external force is needed to cause any acceleration, just as newton proposed in his second law of what?
[ "land", "speed", "gravity", "motion" ]
D
math_qa
mathqa_03_05319
10 is added to a certain number , the sum is multiplied by 7 , the product is divided by 5 and 5 is subtracted from the quotient . the remainder left is half of 88 . what is the number ?
[ "21", "20", "25", "30" ]
C
openbookqa
obqa_02_04620
If a load of deer are moved to a small park, and they are repeatedly sprayed with pesticides, the
[ "deer thrive in that environment", "deer are healthy and happy", "deer are given happy lives", "park will eventually be deerless" ]
D
ARC-Easy
arc_04_00895
Which of the following allows materials to enter and leave a cell?
[ "cell wall", "mitochondria", "vacuole", "cell membrane" ]
D
sciq
sciq_01_07879
What is the term for the small particles that rocks are worn down to by water and wind?
[ "sediments", "fragments", "pebbles", "organisms" ]
A
math_qa
mathqa_03_01195
if n divided by 7 has a remainder of 2 , what is the remainder when 5 times n is divided by 7 ?
[ "1", "2", "3", "5" ]
C
math_qa
mathqa_03_04087
0 - - - : - | - - - : - - | - : - - : - | - - : - - - | - : - - - - 1 on the number line above , the segment from 0 to 1 has been divided into fifths , as indicated by the large tick marks , and also into sevenths , as indicated by the small tick marks . what is the least possible distance z between any two of the tick...
[ "1 / 70", "1 / 35", "2 / 35", "1 / 12" ]
B
ARC-Easy
arc_04_01307
Which movement of carbon between reservoirs takes the longest to achieve?
[ "from burning coal to the atmosphere", "from plant tissues to coal in the crust", "from the atmosphere to the sugars in plants", "from the respiration of fish to the ocean waters" ]
B
math_qa
mathqa_03_03130
the total cost of 100 paper plates and 200 paper cups is $ 4.00 at the same rates what is the total cost of 20 of the plates and 40 of the cups ?
[ "$ . 80", "$ 1.00", "$ 1.20", "$ 1.50" ]
A
sciq
sciq_01_07956
What force pulls people and objects toward the center of the earth?
[ "gravity", "motion", "variation", "magnetism" ]
A
math_qa
mathqa_03_04544
a person incurs 20 % loss by selling a watch for $ 1000 . at what price should the watch be sold to earn 20 % profit ?
[ "$ 1000", "$ 950", "$ 1500", "$ 1150" ]
C
sciq
sciq_01_03743
What do we call something that pushes or pulls on an object?
[ "force", "friction", "reaction", "annoyance" ]
A
math_qa
mathqa_03_05203
the difference between the squares of two consecutive odd integers is a square < 1000 whose root equals the combined sum of the digits of the two integers . what is the sum of the digits m of the larger integer ?
[ "m = 2", "m = 5", "m = 8", "10" ]
A
sciq
sciq_01_06628
What is the transfer of thermal energy by waves that can travel through empty space called?
[ "induction", "radiation", "vibration", "convection" ]
B
math_qa
mathqa_03_04065
one - third of rahul ' s savings in national savings certificate is equal to one - half of his savings in public provident fund . if he has rs . 1 , 25,000 as total savings , how much has he saved in public provident fund ?
[ "80000", "60000", "50000", "75000" ]
C
sciq
sciq_01_02499
What occurs as a result of the discharge of static electricity?
[ "clouds", "lightning", "thunder", "drought" ]
B
math_qa
mathqa_03_05739
a sum of money amounts to rs . 9800 after 5 years and rs . 12005 after 8 years at the same rate of simple interest . the rate of interest per annum is :
[ "22", "88", "12", "73" ]
C
math_qa
mathqa_03_04829
a train usually travels at a speed of 72 kmph crossing a pole in 7 sec , what would be the length of the train ?
[ "140 m", "142 m", "146 m", "152 m" ]
A
openbookqa
obqa_02_03918
The elements will over time level
[ "mountains", "the seas", "god", "giants" ]
A
sciq
sciq_01_01932
What type of cells are multiple small spaces located in the right and left sides of the ethmoid bone?
[ "ethmoid vacuoles", "amniotic sacs", "ethmoid air cells", "alveoli" ]
C
sciq
sciq_01_09851
Along with other functions, what do carbohydrates, proteins, and lipids provide for the body?
[ "carbon", "muscle", "hydrogen", "energy" ]
D
math_qa
mathqa_03_05107
a worker ' s take - home pay last year was the same each month , and she saved the same fraction of her take - home pay each month . the total amount of money that she had saved at the end of the year was 5 times the amount of that portion of her monthly take - home pay that she did not save . if all the money that she...
[ "2 / 11", "3 / 14", "5 / 17", "7 / 20" ]
C
sciq
sciq_01_02850
How many underlying principles does the science of biology have?
[ "three", "five", "eleven", "four" ]
D
sciq
sciq_01_06519
Liverworts are small plants that grow close to what?
[ "tree tops", "beaches", "ground", "houses" ]
C
openbookqa
obqa_02_02582
What might happen in an Earthquake?
[ "It is the start of the Olympics", "Cats come out of the crack", "Jimmy may need to move", "A magical god comes out" ]
C
ARC-Easy
arc_04_01412
An object's hardness, taste, and texture are examples of
[ "principles", "stages", "properties", "processes" ]
C
openbookqa
obqa_02_03674
The sun is
[ "Square shaped", "caused by wind", "Cold", "has nuclear mechanics" ]
D
math_qa
mathqa_03_05638
a sum was put a simple interest at a certain rate for 7 years . had it been put at 2 % higher rate , it would have fetched rs . 350 more . the sum is :
[ "s . 500", "s . 1000", "s . 1500", "s . 2000" ]
A
sciq
sciq_01_06267
What is the physical environment in which a species lives and to which it has adapted?
[ "land mass", "habitat", "ecosystem", "farmland" ]
B
ARC-Easy
arc_04_00902
Some ancient Greeks tried to discover the laws of the universe through thought and logic. Which part of the scientific process were these scientists missing?
[ "analysis", "experiment", "conclusion", "observation" ]
B
math_qa
mathqa_03_04503
a cycle is bought for rs . 900 and sold for rs . 1260 , find the gain percent ?
[ "39 %", "20 %", "40 %", "74 %" ]
C
sciq
sciq_01_01526
The organ systems of the body work together to carry out life processes and maintain what?
[ "movement", "homeostasis", "consciousness", "freshness" ]
B
sciq
sciq_01_05814
What is the measure of the change in velocity of a moving object called?
[ "inclination", "acceleration", "force", "stimulation" ]
B
sciq
sciq_01_04717
Engaging in relatively simple behaviors helps maintain a nearly constant body temperature for organisms classified as what?
[ "photophores", "placoderms", "endotherms", "ectotherms" ]
D
openbookqa
obqa_02_03875
To have energy that will last your whole life you'd buy a
[ "car battery", "loaf of bread", "turbine", "tank of gas" ]
C
math_qa
mathqa_03_05191
when greenville state university decided to move its fine arts collection to a new library , it had to package the collection in 20 - inch by 20 - inch by 12 - inch boxes . if the university pays $ 0.50 for every box , and if the university needs 2.4 million cubic inches to package the collection , what is the minimum ...
[ "$ 250", "$ 275", "$ 510", "$ 1,250" ]
A
math_qa
mathqa_03_03648
if a = 105 and a ^ 3 = 21 × 25 × 45 × d , what is the value of d ?
[ "35", "42", "45", "49" ]
D
sciq
sciq_01_04358
What is glucose used for the bacteria?
[ "food", "energy", "fuel", "reproduction" ]
A
HPCPerfOpt-MCQA
hpc_05_00061
uint64_t seq_sum = 0; \n for (int i = 0; i < N; i++) { \n seq_sum += x[i]; \n } uint64_t vec_sum = 0; \n double start_time, \n end_time; \n start_time = omp_get_wtime(); \n #pragma omp simd num_threads(4) \n for (int i = 0; i < N; i++) { \n vec_sum += x[i]; \n } \n end_time = omp_get_wtime(); \n assert(seq_sum == vec_...
[ "Because parallel processing doesn't have to deal with thread synchronization.", "Because parallel processing doesn't have to deal with thread synchronization.", " Because SIMD operations are inherently slow.", "Because parallel processing uses multiple cores, potentially performing more calculations at the s...
D
sciq
sciq_01_08768
Hormones, ions, and neurotransmitters are all types of what?
[ "nutrients", "proteins", "pathogens", "chemical signals" ]
D
ARC-Challenge
arc_04_02929
In which way are rainforests and coral reefs different from ecosystems with few species?
[ "There are more prey than predators.", "The food web is more stable and lasting.", "Organisms often must compete for food.", "Plant populations are the primary producers." ]
B
math_qa
mathqa_03_05540
how many 3 - digit integers exist such that all their digits are odd ?
[ "80", "100", "120", "125" ]
D
sciq
sciq_01_01023
Hydrogen peroxide will decompose over time to produce _______ gas.
[ "methane", "water and oxygen", "water and carbon dioxide", "hydrogen and helium" ]
B
openbookqa
obqa_02_01168
Leaving coconut oil out on a counter, as the day grows hotter, what happens to the oil?
[ "changes from solid to wet", "it hardens up a lot", "it begins to rot", "it needs to be refrigerated" ]
A
math_qa
mathqa_03_03283
jack and paul are running 1000 m . jack runs 1.5 km / hr faster than paul but also finishes the race 1.5 sec earlier . what is the speed of jack ? ?
[ "19.6", "20.6", "21.6", "22.6" ]
B
math_qa
mathqa_03_02033
what is the next number : 2 , 17 , 257 , __
[ "2977", "3837", "4097", "4847" ]
C
openbookqa
obqa_02_01103
The way that the earth rotates and moves through space can effect how
[ "the stars are viewed in the sky", "how the moon phases", "the heat of the sun", "the plants we are able to eat" ]
A