dataset
string
id
string
question
string
choices
list
rationale
string
answer
string
subject
string
mmlu_stem
mmlu_stem_7277
Alaska polar bears are losing their fur and U.S. Geological Survey scientists don't know why. In the past two weeks, nine of 33 bears checked by scientists in the southern Beaufort Sea region near Barrow were found to have alopecia -- loss of fur, said Tony DeGange, chief of the biology office at the USGS Science Cente...
[ "Three fourth bears are suffering this deadly disease.", "Bears losing fur were first found over 10 years ago.", "Bears' loss of fur is related to the seal death event.", "Bears losing fur have been found not only in US." ]
null
B
mmlu_stem
mmlu_stem_8558
Long-time exposure to air pollution can lead to physical changes in the brain and cause trouble in learning and memory, and even anxiety. This is suggested by the results of new research on mice. While other studies have shown the harmful effects of polluted air in the lungs and heart, this is the first to show the n...
[ "Long-time Exposure to Air Pollution", "Evidence and Concern of Air Pollution", "Measurable Effect on Human Brain", "Mental Problems Caused by Air Pollution" ]
null
D
mmlu_stem
mmlu_stem_10565
It's a safe bet that a robot made your car and your computer.Pretty soon,they could be making your bed and breakfast,too. Increasingly,engineers are saying that robots are going to move out of research departments and into your home.Companies including Sony and General Electric are working on designs for small robo...
[ "Robots have already come into ordinary homes.", "Technology is the only basis of the development of robots.", "Sony and General Electric are not interested in designing small robots.", "Robots that can walk on two legs and talk like people arc still far from us" ]
null
D
mmlu_stem
mmlu_stem_8921
People are being lured onto Facebook with the promise of a fun, free service, and don't realize that they're paying for it by giving up loads of personal information. Facebook then attempts to make money by selling their data to advertisers that want to send targeted messages. Most Facebook users don't realize this ...
[ "He is dissatisfied with its service.", "He finds many of its users untrustworthy.", "He doesn't want his personal data badly used.", "He is upset by its frequent rule changes." ]
null
C
mmlu_stem
mmlu_stem_3533
The crisis at the damaged Fukushima Dai-Ichi Nuclear Power Station in northern Japan has raised worries about radiation risks. We spoke Tuesday with Jonathan Links, an expert in radiation health sciences. He is a professor at the Johns Hopkins Bloomberg School of Public Health in Maryland. Professor Links says workers ...
[ "What measures the Japan Government takes to solve the nuclear crisis .", "Worries and influences caused by the nuclear crisis .", "With great efforts of scientists , the Japan Government has put the nuclear crisis under control .", "To explain that the nuclear crisis has less effect on its neighboring countr...
null
B
mmlu_stem
mmlu_stem_11105
How do you feel after you've stayed up late to finish schoolwork? Or the day after a slumber party? Scientists now say that your answers to these questions may depend on your genes. Genes are stretches of DNA that work like an instruction manual for our cells. Genes tell our bodies and brains what to do. People have ab...
[ "need to go to bed early and get up early", "can work better than the people with long form of period3 without sleep", "take less time to fall asleep after they stay up late", "need more and deeper sleep to keep their brains working at top form" ]
null
B
mmlu_stem
mmlu_stem_5388
Special Bridges Help Animals Cross the Road ----Reported by Sheila Carrick Why did the chicken cross the road? To get to the other side. Most people know this joke.But recently, some people have been much more worried about how the grizzly bear and mountain lion can cross the road. "Millions of animals die...
[ "an underground path for cars", "a fence built for the safety of the area", "a bridge for animals to get over a river", "a pass for animals to cross the road" ]
null
D
mmlu_stem
mmlu_stem_7223
Travel is exciting and summer is a busy period for holiday travel. Many people will travel great distances in airplanes, cars or other vehicles. Experts say people should know about other health problems that can strike when traveling by air. One of these is a condition called hypoxia . It results from a lack of oxyge...
[ "warn people in airplanes of possible dangers", "offer some advice on avoiding health problems", "explain the causes and effects of hypoxia", "advise people not to smoke or drink alcohol" ]
null
C
mmlu_stem
mmlu_stem_1441
There once was a big black and white dog named Forrest. His owner's name was Jeff. Jeff thought he was the best dog in the whole world. One night, when Forrest and Jeff were taking a walk in the park, they saw two men walking down the path. Both men were dressed in very nice suits. Jeff waved at the men. "Good even...
[ "two", "four", "three", "one" ]
null
A
mmlu_stem
mmlu_stem_1157
Mr. Pratt does a science demonstration. He inflates a balloon, places it in a freezer, and then removes it after 10 minutes. Which best describes the balloon's volume when in the freezer and then after being removed and allowed to warm up?
[ "expands in the freezer and then contracts as it gets warmer again", "contracts in the freezer and then expands as it gets warmer again", "expands in the freezer and then keeps that volume when warmed up", "contracts in the freezer and then keeps that volume when warmed up" ]
null
B
mmlu_stem
mmlu_stem_20370
The quickness of this animal is a key change that allows it to escape attacks from feasting animals:
[ "the praying mantis", "the potato bug", "antelope", "the eagle" ]
null
C
mmlu_stem
mmlu_stem_4231
Mr Smith was the manager of a hotel in Springfield. One weekend all of the hotels in the city were full because there was a large meeting. Late in the evening three men came into the hotel and asked for rooms. Mr Smith explained that because of the meeting, there were no rooms ready for use. The men were very unhappy b...
[ "The Kind Manager", "Three Men Came to the Hotel", "A Strange Maths Problem", "$27 + $2 = $29" ]
null
C
mmlu_stem
mmlu_stem_20801
If someone is dying of liquid needs, they can hydrate the body by
[ "high temp snow", "catching falling ash", "visiting a valley", "pray" ]
null
A
mmlu_stem
mmlu_stem_249
A research scientist repeatedly observes a bird avoiding a specific butterfly species even though it eats other types of butterflies. Which statement most likely explains the behavior of the bird?
[ "The behavior is a random act.", "The behavior is the result of a genetic mutation.", "The behavior is inherited from the bird's parents.", "The behavior is learned over the lifetime of the bird." ]
null
D
mmlu_stem
mmlu_stem_2060
When a person speaks into a telephone, sound energy is changed mostly into which form of energy?
[ "heat", "light", "electrical", "chemical" ]
null
C
mmlu_stem
mmlu_stem_22144
As Ethanol burns it expels what into the ozone
[ "radiation", "lightning", "CO2", "nitrogen" ]
null
C
mmlu_stem
mmlu_stem_8191
Bump! Bump! Scratch! Adam opened his eyes and pulled the covers up to his chin. He stared around his room, searching the darkness for the thing that was making those scary sounds. The closet door moved as something banged on it from the inside. "Who's there?" Adam asked in a shaky voice. The closet slowly began to op...
[ "keep the creature from coming out of the closet", "catch the creature in the closet", "scare the creature in the closet", "hit the creature in the closet" ]
null
B
mmlu_stem
mmlu_stem_9158
Can people change their skin colour without suffering like pop king Michael Jackson? Perhaps yes. Scientists have found the gene that determines skin colour. The gene comes in two versions, one of which is found in 99 per cent of Europeans. The other is found in 93 to 100 per cent of Africans, researchers at Pennsylvan...
[ "people living in northern latitudes need more sunlight", "the reason why people change their skin colour", "the reason why people get skin cancer", "the gene that determines skin colour" ]
null
D
mmlu_stem
mmlu_stem_11785
Imagine life without the Internet -- not being able to chat with your friends or look up information for your homework or research project. That is the reality for nearly two-thirds of our world's population, either because they cannot afford WiFi access or are located in remote, inaccessible areas. Now Google has deci...
[ "WiFi from the sky", "Life without the technology", "The people behind Google", "The future of research balloons" ]
null
A
mmlu_stem
mmlu_stem_2576
"Soon,you're going to have to move out!"cried my neighbor upon seeing the largest tomato plant known to mankind,or at least known in my neighborhood. One tiny 9-inch plant,bought for $ 1.25 in the spring.has already taken over much of my rose bed,covering much of other plants,and is well on its way to the front doo...
[ "it cost only$1.25", "the soil was just right for it", "there was room for it in the garden", "the roses'branches needed to be covered" ]
null
C
mmlu_stem
mmlu_stem_10196
The red crab lives on Christmas Island in the Indian Ocean and has been found nowhere else in the world. But on its homeland it is a very significant species -- some 120 million individuals cover the rain forest floor and play a major role in determining the structure of the ecosystem. These large crabs are active du...
[ "it's gradually dying out", "it's not found anywhere else", "it's well protected by the local people", "its huge population affects its native ecosystem" ]
null
D
mmlu_stem
mmlu_stem_21858
On a summer day, a dog stuck outside will
[ "be dripping with sweat", "lick at the window", "appear to be smiling with its mouth open", "curl up somewhere and shiver" ]
null
C
mmlu_stem
mmlu_stem_458
New carpet is being measured for a room that is 5.5 m by 4.6 m. On a measuring tape, what is the smallest unit that is necessary to measure the room accurately for the carpet?
[ "millimeters", "centimeters", "meters", "kilometers" ]
null
B
mmlu_stem
mmlu_stem_22229
Driving during a snow storm or strong thunderstorm is a bad idea because bad weather makes it
[ "harder to see", "Easier to see", "able to fly", "glasses" ]
null
A
mmlu_stem
mmlu_stem_1089
The radioactive isotope content of a rock can be used to identify which property of the rock?
[ "the total mass of the rock", "the rate at which the rock formed", "the types of fossils that the rock contains", "the amount of time passed since the rock formed" ]
null
D
mmlu_stem
mmlu_stem_12012
People have been growing chrysanthemums for more than 2,000 years. Mums make bright and colorful gardens. People in China and other Asian cultures make tea with the flowers. One basic kind of mum is the garden mum. The other basic kind is the florist mum. The garden mum is better able to handle different growing condit...
[ "To make mums grow thick.", "To get more blooms.", "To prevent mums from falling ill.", "To let air flow between the plants." ]
null
B
mmlu_stem
mmlu_stem_11686
Special trees that grow faster, fight pollution, produce better wood, and even sense chemical attacks are being planted by scientists in the US. When 40 per cent of Hawaii's US$14 million-a-year papaya industry was destroyed by a virus five years ago, work began on creating genetically engineered trees. Researchers su...
[ "Papaya.", "Pine.", "Apple.", "Poplar." ]
null
A
mmlu_stem
mmlu_stem_21637
a battery converts chemical energy into electrical energy to power a
[ "sponge", "rock", "stapler", "calculator" ]
null
D
mmlu_stem
mmlu_stem_4717
Imagine you are in a jumping contest. Animals and insects can also enter this contest. But they might just leave humans in the dust! The first event is the long jump. The human athlete is Mike Powell. In 1991, he jumped nearly 30 feet, which is the world record for the long jump. That is about five times his own height...
[ "By giving instructions.", "By making comparisons.", "By following the order of time.", "By following the order of importance." ]
null
B
mmlu_stem
mmlu_stem_11184
One day a man found a cocoon of a butterfly in the forest. He sat there for several hours and watched the butterfly. Suddenly a small opening appeared, and the butterfly made its great effort to force its body through that little hole. Then it seemed to stop making any progress. It appeared as if it had gotten as far a...
[ "It was trying to make a cocoon for itself.", "It was struggling to get out of its cocoon.", "It was flying among the trees in the forest.", "It was crawling around quietly on the ground." ]
null
B
mmlu_stem
mmlu_stem_20783
If the ground is fully shaded, and plants there barely grow, likely the reason is
[ "water there is clean", "people there are silly", "oaks there are mighty", "birds there are fat" ]
null
C
mmlu_stem
mmlu_stem_8595
Did you know that a turtle can lay 12 eggs in one minute? A large sea turtle lays around 150 eggs at a time. She lays all these eggs in just a few minutes. Large sea turtles live in the warm seas of the world. Except for when they lay their eggs, they spend their whole lives in the water. When it is time to lay their e...
[ "Sea turtles have interesting life habits.", "Sea turtles swim to shore to lay their eggs.", "Large sea turtles lay their eggs in special ways.", "Sea turtles enjoy staying in the sand." ]
null
C
mmlu_stem
mmlu_stem_3021
Squawk! Polly wants a cracker! Pretty bird! Pretty bird! These are just a few of the things you might hear coming out of a parrot's mouth. Although parrots seem to be able to talk, they're not really talking like humans. They're not choosing and saying words with specific meanings. Instead, they're simply imitating so...
[ "showing your kindness to it", "training it in a certain way", "directing airflow through its mouth", "making it imitate another bird" ]
null
B
mmlu_stem
mmlu_stem_19359
A river can push tin cans down the path of the water because
[ "it has motion", "it is wet", "it is loud", "it is strong" ]
null
A
mmlu_stem
mmlu_stem_10551
Xinhua Sept.25,2008 JIUQUAN, Gansu---China launched successfully its third manned spacecraft on Thursday with three astronauts on board to attempt the country's first-ever space walk. The spaceship Shenzhou VII blasted off on a Long March II-F carrier rocket from the Jiuquan Satellite Launch Center in the northwestern...
[ "Science and Technology.", "Entertainment.", "Sports report.", "Advertisement" ]
null
A
mmlu_stem
mmlu_stem_11172
Shree Bose is one of the most impressive kids graduating from Fort Worth Country Day High School this year. Bose has a large circle of friends, and there's one who you may have heard of: President Obama. He has twice publicly recognized her achievements in cancer research and spoken with her in the Oval Office. If that...
[ "Bose's research was supported from the start", "Bose plans to become a doctor in the future", "Bose will study in the National Institute of Health", "Bose's grandfather asked her to do cancer research" ]
null
B
mmlu_stem
mmlu_stem_20816
Xenons use current to produce light as well as
[ "rainbows", "thermal exchange", "darkness", "heat sinks" ]
null
B
mmlu_stem
mmlu_stem_3718
"I don't think I can do this any more." "Yes, you can. You only have five more radiation treatments to go. " I held my wife Becky close. Ever since the breast cancer diagnosis , she had tried hard to be strong for the kids and for me. When her diagnosis came, my first thought was there was no way I could lose my wif...
[ "the author had little hope that his wife would survive", "the author was determined to save his wife's life", "the author's wife refused to receive radiation treatments", "the author felt lucky that his wife's disease was not serious" ]
null
B
mmlu_stem
mmlu_stem_5448
French surgeons have performed what they said on Wednesday was the world's first partial face transplant--- giving a new nose, chin and lips to a woman attacked by a dog. Specialists from two French hospitals carried out the operation on a 38-year-old woman on Sunday in the northern city of Amiens by taking the face fr...
[ "The woman had used the dead woman' s whole face.", "There has arisen a debate about the operation.", "The woman will suffer from psychological damage soon.", "Such transplants have been performed by doctors." ]
null
B
mmlu_stem
mmlu_stem_19564
Miletinae in the air above will have gone through a transmutation and would have already gone through what pre imago but post egg stage ?
[ "egg stage", "old stage", "stage after larva", "moth stage" ]
null
C
mmlu_stem
mmlu_stem_4077
A black hole is created when a large star burns out. Like our sun, stars are unbelievably hot furnaces that burn their own matter as fuel. When most of the fuel is used up, the star begins to die. The death of a star is not a quiet event. First there is a huge explosion. As its outer layer is blasted off into space, ...
[ "A New Scientific Discovery: Black Holes", "How Do Black Holes Come Into Being?", "What Are Black Holes?", "Travel Through A Black Hole" ]
null
C
mmlu_stem
mmlu_stem_13749
Do you know Tai Ping Clothes Store? It's a great store. I like it very much. There are lots of things at a very good price in the store. They have sweaters in all colors for 50 yuan . They have bags for sports and school. They sell them for only 4 yuan. They have black T-shirts for only 20 yuan. They have long white so...
[ "69yuan", "67 yuan", "55 yuan", "70 yuan" ]
null
A
mmlu_stem
mmlu_stem_5016
Celia was shocked. She had always been in good shape during high school, but now, in her first year of college, she was suddenly ten pounds heavier. "My friends and I often had pizza or ice cream when we studied late at night," she said, "and I was always drinking Coke to stay awake." Celia's experience is common. Many...
[ "She had sleep problems.", "She put on weight suddenly.", "She always studied late.", "She went on diet so as to keep in good shape." ]
null
B
mmlu_stem
mmlu_stem_12250
A 15-year-old student who invented a flashlight getting power from the holder's body heat is going home today from California with a big prize and a chance to do further research. Ann Makosinski was the only Canadian among the four winners at Google's international science competition. Thousands of young scientists fro...
[ "easy to win the international science competition", "Hollow Flashlight is safe, noiseless and can save energy", "Ann has made a decision to be a scientist in the future", "few people are interested in how Ann created the flashlight" ]
null
B
mmlu_stem
mmlu_stem_12803
Peter: Paul, what are you going to do this afternoon? Paul: I plan to climb a hill. Would you like to go with me? Peter: Thank you. But I don't want to be tired. I want to sleep at home. Have a good time! Paul: I'm sure I will. But now I don't know what to wear. Peter: What about your new trousers? Paul:My new trouse...
[ "Paul's new trousers.", "Paul's blue jeans.", "Paul's trainers.", "Paul's cap." ]
null
A
mmlu_stem
mmlu_stem_20989
Organic mass is gained in the earth by insect
[ "JDZ clones", "mushroom farmers", "garbage eaters", "trash removers" ]
null
C
mmlu_stem
mmlu_stem_12826
The keys to reaching or staying at a healthy weight are regular exercise and good eating habits. Teens should get 60 minutes or more of physical activity a day. Note the word "activity". As long as you're getting your body moving, it doesn't have to mean doing difficult exercise or going to the sports hall every day. A...
[ "physical activity", "body movement", "sports hall exercise", "outdoor exercise" ]
null
C
mmlu_stem
mmlu_stem_12559
Dear Jane, I have to go to work now. I prepare these things for you. Your schoolbag is on the desk. Your pen ,books,keys and your school card are in your schoolbag. Your clothes and hat are on the dresser . The shoes are under the bed. Don't _ your breakfast . It's in the microwave oven . Love you. Mom _ leaves th...
[ "Jane", "Jane's father", "Jane's brother", "Jane's mother" ]
null
D
mmlu_stem
mmlu_stem_5902
Seven species of carp native to Asia have been introduced into United States waters in recent decades, but it's four in particular-bighead, black, grass and silver-that worry ecologists, biologists, fishers and policymakers alike. Introduced in the southeast to help control weeds and parasites in aquaculture operati...
[ "testing various barrier technologies", "construction of an underwater electric fence", "Emptying and washing boats before using them.", "monitoring the Mississippi and its branches for Asian carp" ]
null
B
mmlu_stem
mmlu_stem_12148
Women are friendly. But men are more competitive. Why? Researchers have found it's all down to the hormone oxytocin . Although known as the love hormone, it affects the sexes differently. "Women tend to be social in their behavior. They often share with others. But men tend to be competitive. They are trying to improve...
[ "Placebo.", "Oxytocin.", "The gesture.", "The social status." ]
null
B
mmlu_stem
mmlu_stem_9478
Researchers invited 79 people between the ages of 18 and 50 years old who had been diagnosed with depression. 33 of the participants were offered 20 music therapy sessions, in addition to their usual treatment for depression. The other 46 participants received stan dard treatment, and acted as the control group. The on...
[ "Music therapy", "Medication", "Psychotherapy", "Counseling" ]
null
A
mmlu_stem
mmlu_stem_21184
A hummingbird will be useful to which of these things in procreation?
[ "sawdust", "bears", "beetles", "cherry tree" ]
null
D
mmlu_stem
mmlu_stem_18668
The length of a year is equivalent to the time it takes for one
[ "rotation of Earth", "rotation of the Sun", "revolution of Earth around the Sun", "revolution of the Sun around Earth" ]
null
C
mmlu_stem
mmlu_stem_3632
We know that many animals do not stay in one place.Birds,fish and other animals move from one place to another at a certain time.They move for different reasons:most of them move to find food more easily,but others move to get away from places that are too crowded. When cold weather comes,many birds move to warmer plac...
[ "they give birth", "the weather is bad", "the place gets too crowded", "they haven't enough food" ]
null
C
mmlu_stem
mmlu_stem_12014
If English means endless new words,difficult gramrnar and sometimes strange pronunciation,you are wrong.Haven't you noticed that you have become smarter since you started to learn a language? According to a new study by a British university,learning a second language can lead to an increase in your brain power,Research...
[ "language can help brain power", "man's ability of learning a second language", "science on learning a second language", "language learning and maths study" ]
null
A
mmlu_stem
mmlu_stem_6308
Even plants can run a fever, especially when they're under attack by insects or disease. But unlike human, plants can have their temperature taken from 3,000 feet away--straight up. A decade ago, adopting the infrared scanning technology developed for military purposes and other satellites, physicist Stephen Paley came...
[ "resorting to spotspraying", "transforming poisoned rain", "consulting infrared scanning experts", "detecting crop problems at an early stage" ]
null
A
mmlu_stem
mmlu_stem_19916
A person pours water into a cylinder in order to
[ "touch it", "observe it", "taste it", "make it" ]
null
B
mmlu_stem
mmlu_stem_11950
My husband had just bought a new washing machine for me. I decided to use it the other day and I washed a lot of things. Everything worked well, but I found one of my husband's socks missing. I looked everywhere for it, but I couldn't find it anywhere. The next morning, I got ready for school as usual. When the bell ra...
[ "paid no attention to the students", "continued my explaining", "write on the blackboard again", "became angry" ]
null
C
mmlu_stem
mmlu_stem_21783
if a salmon visits the site of its birth, what could be the reason for that?
[ "it is coming to have its own offspring", "it is coming home to die", "it is coming to see its father", "it is coming to visit its mom" ]
null
A
mmlu_stem
mmlu_stem_10779
Beijing--(13, July) China sent up a new data relay satellite , Tianlian I-02, on Monday at the Xichang Satellite Launch Centre in South-western Sichuan province.The new satellite will promote the country's satellite communication network for space docking . The satellite was launched on a Long-March-3C carrier rocket a...
[ "Shenzhou VIII is a manned spaceship.", "Tiangong-I will dock with three Shenzhou spaceships next year.", "the satellite is of great importance to China's space exploration.", "china's first space docking will be done in the second half of next year." ]
null
C
mmlu_stem
mmlu_stem_10339
Hybrid cars are cars that run on petrol and electricity. They have a small standard petrol engine and a battery electric motor to provide electric power. There are some differences between different models of hybrid cars, but the general principle is that the car runs on petrol, and the electric motor kicks in when...
[ "show haw hybrid cars slow down", "encourage people to buy hybrid cars", "inform people a kind of energy-saving cars", "explain why hybrid cars use less energy" ]
null
C
mmlu_stem
mmlu_stem_6230
The earth is not the only body that travels around the sun. With it are eight other planets, fellow members of the sun's family. Two of them, Mercury and Venus, are nearer while the other six, namely Mars, Jupiter, Saturn, Uranus, Neptune and Pluto, also in their given order from the sun, are farther from the sun tha...
[ "Mercury and Venus.", "Neptune and Pluto.", "Saturn and Uranus.", "Mars and Jupiter." ]
null
B
mmlu_stem
mmlu_stem_21233
When a lady beetle is grown up, she may spend time
[ "laying a clutch", "making a memory", "making friends", "seeing the sights" ]
null
A
mmlu_stem
mmlu_stem_330
In the past, Native American Indians buried dead fish along with corn seeds. This technique was used because the decomposing dead fish would
[ "provide nutrients for the growing corn plant", "eliminate the need for weeding around the corn plant", "release oxygen for use by the corn plant", "supply all the water needed by the corn plant" ]
null
A
mmlu_stem
mmlu_stem_6223
Last March, the H7N9 virus hit Shanghai, Anhui, Jiangsu, Zhejiang and so on. It seemed that most people who were infected with H7N9 had the common flu . Some people suffered from a fever or a cough. Don't be afraid--it's not easy to be infected with the virus. Here is some advice to help you protect yourself when...
[ "In March, 2013.", "In May, 2013.", "In March, 2012.", "In April,2013" ]
null
A
mmlu_stem
mmlu_stem_813
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." ]
null
C
mmlu_stem
mmlu_stem_19459
A balance can measure the weight of
[ "sugar", "tea", "salt water", "chocolate milk" ]
null
A
mmlu_stem
mmlu_stem_16898
Bringing a giraffe into the world is _ . A baby giraffe is born 10 feet high and usually lands on its back. Within seconds it rolls over its legs under its body. Then the mother giraffe rudely introduces its children to the reality of life. In his book,A View from the Zoo, Gary Richmond describes how a new-born giraff...
[ "A new-born giraffe's first lesson.", "A mother giraffe's story.", "The lives of some great people.", "The way for a giraffe to stand up." ]
null
A
mmlu_stem
mmlu_stem_3044
Older fathers have uglier children, researchers have claimed after linking age to genetic mutations . The finding comes weeks after leading scientists reported children born to men over the age of 45 run a higher risk of having autism and mental disorders. With age, sperm -producing cells do not copy a man's DNA as eff...
[ "Genetic mutations inside a person cause autism", "Environmental factors contribute to autism", "In the UK, one percent of its population are affected by autism", "Autism prevents people from interacting socially and communicating openly" ]
null
D
mmlu_stem
mmlu_stem_17377
Where is most of the mass of the atom located?
[ "in the protons", "in the nucleus", "in the neutrons", "in the electrons" ]
null
B
mmlu_stem
mmlu_stem_6646
Recordings of angry bees are enough to send big, tough African elephants running away, a new study says. Beehives -either recorded or real-may even prevent elephants from damaging farmer's crops. In 2002, scientist Lucy King and her team found that elephants avoid certain trees with bees living in them. Today, Lucy w...
[ "To record the sound of bees.", "To make a video of elephants.", "To see if elephants would run away.", "To find out more about the behavior of bees." ]
null
A
mmlu_stem
mmlu_stem_14553
Here are four of my friends. Get to know them and their interesting experiences. I'm Mark. I'm 12. I have learned a lot about cycling and cycled about two hundred miles with my friends. We all felt very excited. My name is Sam. I'm one year older than Mark. I have entered a competition. At last, I won it and the priz...
[ "five", "two", "three", "Four" ]
null
C
mmlu_stem
mmlu_stem_19631
Which of these is lacks molecules?
[ "a speech", "a dog", "a book", "a grape" ]
null
A
mmlu_stem
mmlu_stem_20674
A creature that can move through liquid easily due to flippers is
[ "bluejays", "felines", "penguins", "cattle" ]
null
C
mmlu_stem
mmlu_stem_5286
Tens of thousands of smartphone applications are running ads from the overwhelming advertising networks that change smartphone settings and copy people's contact information without permission. Aggressive ad networks can disguise ads as text message notifications , and sometimes change browser settings and bookmarks...
[ "The software runs behind the scenes.", "The app is very hard to delete.", "It is difficult to find the problem app.", "The network antivirus is out of date." ]
null
C
mmlu_stem
mmlu_stem_6125
Gimmicky--and expensive--new gloves allow chatterboxes to take the term 'handsfree' to a new level--by talking into them as they make a call. The gloves are known as 'Talk to the Hand' and costPS1.000 a pair. They come with a speaker unit embedded into the thumb and a microphone built into the little finger that ...
[ "New mobiles that are fashionable.", "Sean Miles who set up a phone company.", "Outdated gadgets that can be used for recycling.", "New gloves that can be used for making phone calls." ]
null
D
mmlu_stem
mmlu_stem_18172
Which would most likely be the characteristic of an object with a small volume and large mass?
[ "high density", "low pressure", "low viscosity", "high temperature" ]
null
A
mmlu_stem
mmlu_stem_17569
The number of fish in a lake suddenly increases. How will the increase most likely affect the lake?
[ "There will be less water in the lake.", "More plants will grow in the lake.", "More frogs will live in the lake.", "There will be fewer insects in the lake." ]
null
D
mmlu_stem
mmlu_stem_16724
An astronaut's work may sound exciting, but living in space isn't as fun as you think. The website www.space.com lists the disadvantages of living in space. Here are some of them. When astronauts work outside the station during spacewalks, they have to wear special gloves. The gloves are very tight. They can hurt the a...
[ "By taking medicine.", "By doing exercise.", "By taking a good rest.", "By walking in space." ]
null
B
mmlu_stem
mmlu_stem_4836
Wake Up,Sleep Gene Some people can stay up all night and still get work done the next day.I'm not one of them.After a night without enough sleep,I feel bad-tempered.I have trouble remembering things.And all I want to do is crawl back into bed and sleep. How do you feel after you've stayed up late to finish schoolwork? ...
[ "Because the writer could remain energetic without enough sleep.", "Because the writer could do things correctly at dawn.", "Because the writer needed more sleep to keep energetic", "Because the writer recovered quickly after sleep." ]
null
C
mmlu_stem
mmlu_stem_15201
My name is Jane King. Jane is my first name and King is my family name. I'm twelve. I'm also an English girl.I have a brother. His name is John. He is only five. He is very lovely. Both my father and mother are teachers. They love their work. They work very hard. We have a house with a garden. The house is big and nice...
[ "King", "John", "John King", "King John" ]
null
C
mmlu_stem
mmlu_stem_3687
Technology is changing our lives. Our present aerospace companies are gradually disappearing as private space concerns are being born every day. I'm going to discuss three spacebased businesses that are sure to soon influence us all. First we have to make space travel cheaply and safely. Engine design is the main chal...
[ "the future of space travel", "the cost of space travel in the future", "the development of spacecrafts", "cheap travel in the future" ]
null
A
mmlu_stem
mmlu_stem_21965
Which is most likely to occur?
[ "a female fly lays eggs while it is a larvae", "a male fly lays eggs while it is a larvae", "a male fly lays eggs while it is an adult", "a female fly lays eggs while it is an adult" ]
null
D
mmlu_stem
mmlu_stem_15167
Mr Smith gave his wife money every Friday evening. His wife always spent it all the next Wednesday, so that for the next three days she had no money to spend at all. One day Mr Smith asked her," But how did you spend all that money?" She answered, "I don't know . "So one Friday evening, Mr Smith gave her money together...
[ "glad", "tall", "careful", "Good" ]
null
C
mmlu_stem
mmlu_stem_6788
If You Decide to Go to the Moon By Faith Mcnulty, Steven Kellogg(illustrator)---This book is written in the second person and tells you the most important information you need to know if you go to the moon. I especially appreciate the information on how to get home. You know, just in case... Discover Space By Cynthia P...
[ "The Planets", "Discover Space", "This Rocket", "Our Planet" ]
null
B
mmlu_stem
mmlu_stem_1260
Using the Internet for a research paper can help a student find many resources. One problem with using information on the Internet is that it might be
[ "free.", "current.", "detailed.", "incorrect." ]
null
D
mmlu_stem
mmlu_stem_4724
The poorer mental function seen among alcoholics,many of whom also regularly smoke cigarettes,may be partly due to the long term effects of nicotine ,new research suggests. "People who are also smokers are at a much higher risk," Dr.Jennifer M.Glass of the University of Michigan's Addiction Research Center said. In he...
[ "Cigarette smoking contributes to decreased IQ and thinking.", "Alcohol abuse is to blame for the poorer mental function.", "Most of the alcoholics are also heavy smokers.", "Non-smokers mostly have higher IQ scores." ]
null
A
mmlu_stem
mmlu_stem_10676
Artificial flowers are used for scientific as well as for decorative purposes. They are made from a variety of materials, such as wax and glass, so skillfully that they can scarcely be distinguished from natural flowers. In making such models, painstaking and artistry are called for, as well as thorough knowledge of p...
[ "create a botanical garden where only exotic flowers grew", "do a thorough study of plant structure", "make a copy of one member of each United States flower family", "show that glass are more realistic than wax flowers" ]
null
C
mmlu_stem
mmlu_stem_17271
Hydrochloric acid is added to a beaker containing a piece of zinc. As a result, zinc chloride is formed and hydrogen gas is released. This is an example of
[ "a chemical reaction", "a physical change", "photosynthesis", "evaporation" ]
null
A
mmlu_stem
mmlu_stem_2996
"Your son is one of the sickest kids we've ever had in intensive care," was what the nurse said to me after we had arrived in an ambulance, 20 minutes from Kingston Hospital to the Evelina in Westminster. The journey was the longest of my life. I had been told that my six-month-old son, my friend, my whole heart, was g...
[ "desperate and fearful", "special and different", "bitter and lonely", "disturbed and annoyed" ]
null
A
mmlu_stem
mmlu_stem_13772
Many people think the camel stores only water in its hump ,but it does not,Instead,the camel stores something else there----food.The camel's hump is really a hump of fat.When the camel,often called"a ship of the desert",is not travelling and is in a place where there is plenty of food and water,it eats and drinks a lot...
[ "camels can live without food and water", "camels need more but pay less", "there is much food and water in camels' humps all the time", "camels make food and water into fat and store it in their humps" ]
null
D
mmlu_stem
mmlu_stem_4396
Many people have long dreamed of being able to fly around as simply as riding a bicycle. Yet the safety and strength of a flying bike was always a big problem. Over the past 10 years, developments in technology have moved the dream of personal flying vehicles closer to reality. Now, two groups of inventors say such ve...
[ "Modem technology.", "New safety rules.", "Love of cycling.", "Public concerns." ]
null
A
mmlu_stem
mmlu_stem_12787
We go shopping on Sunday. I often go to the supermarket with my mother on Sunday morning. Father likes fruit very much. We buy some bananas for him. Mother likes red apples, but the apples in the supermarket are green. We don't buy them. The strawberries are very nice. Mother likes them very much and buys some for...
[ "I", "Father", "Mother", "I don't know." ]
null
C
mmlu_stem
mmlu_stem_673
What is the composition of Saturn's rings?
[ "hydrogen and helium", "ammonia and methane", "clusters of space debris", "chunks of ice and rock" ]
null
D
mmlu_stem
mmlu_stem_1745
One Thursday morning, John's dad was making him breakfast. John came downstairs in his favorite blue shirt and fed his dog Bentley. After washing his hands, John sat down to a hot plate of pancakes, eggs, and bacon. John's baby sister Emily began to cry in her high chair. John gave Emily her pink pacifier to calm her d...
[ "Front yard", "Living Room", "Backyard", "Kitchen" ]
null
C
mmlu_stem
mmlu_stem_21942
Large trees block sunlight from reaching what?
[ "moons", "outdoor floor", "clouds", "coffee grounds" ]
null
B
mmlu_stem
mmlu_stem_1454
Johnny is a nine year old boy. On one hot summer day, Johnny is outside his house playing with his dog. He is very hot and wants to have some ice cream. He looks in his freezer and sees that he does not have ice cream. Johnny then hears the song of the ice cream truck. Johnny runs outside but does not see the ice ...
[ "four dollars", "nine dollars", "one dollar", "five dollars" ]
null
A
mmlu_stem
mmlu_stem_9284
The United States government wants to know what the public thinks about its findings on the safety of cloned animals. The Food and Drug Administration says meat and milk from clones of adult cattle, pigs and goats are safe to eat. An F.D.A. official called them "as safe to eat as the food we eat every day." And when th...
[ "tell a interesting story", "give some advice on foods", "give a report", "compare different opinions" ]
null
C
mmlu_stem
mmlu_stem_735
When the switch in a simple series circuit is closed, what happens to the light bulb that the electricity is flowing to?
[ "the light cracks", "the light goes off", "the light burns out", "the light comes on" ]
null
D
mmlu_stem
mmlu_stem_18536
Which event would most likely cause a rapid extinction of organisms?
[ "a large asteroid impact", "regional drought", "new glacier formation", "a decrease in the growth of weeds" ]
null
A