Q: I'm taking a test and have to guess the right answer to the question after the article. Article: Why do plants grow in some places and not in others? Why does some land have so much growing on it, while other land has almost no plants growing on it at all? To grow, plants need several things. One is warmth. In very cold places almost nothing grows. Plants also need water. In very dry parts of the Earth only a few unusual plants can grow. That's why dry deserts everywhere are almost not covered by trees or grass. Plants must also have a place in which to put down their roots and grow. They find it difficult to grow on hard land. The town is built on hard land. The plants here have only the soil found between the _ cracks of the stones to grow in. Another thing plants must have before they can grow is food. What will happen if we try to make things grow on the sandy beach? A few plants, such as beach grass, will grow in sand, but most plants won't. Even if the weather is warm enough and we water the plants each day, many of them will die because the sand on this beach has almost no food for plants. Question: The passage can most probably be found in a_book. Options: A: science B: history C: travel D: math
A: A

Q: I'm taking a test and have to guess the right answer to the question after the article. Article: In some children who go blind, certain parts of the brain that normally control vision appear to switch jobs and focus instead on sound, a new study has found. The study, by researchers at the University of Montreal, involved 7 adults who could see and 12 adults who had lost their vision when they were children. Each participant sat in a room with 16 loudspeakers at different locations. The room was designed so that there were no echoes During the experiment, the speakers irregularly produced sounds. Participants had to point to where the sounds were coming from. Meanwhile, the researchers monitored blood flow in the brains of the participants to see which brain structures were working during the task. The results showed that five of the blind participants were very good at pointing to where sounds were coming from. In these people, blood flow increased in the visual cortex --- an area at the back of the right side of the brain. This part of the brain is usually associated with vision. The other seven blind participants showed no increase in activity in the visual cortex. These people didn't do very well at picking out where sounds were coming from. Now, the researchers are looking at whether these people have gained an enhanced sense of touch instead of sound to replace their lost vision. The scientists say that their study shows how adaptable parts of the brain can be. Question: During the experiment, blood flow in the brains of the participants was measured in order to _ . Options: A: find out which parts of the brain were functioning B: look for the way of enhancing hearing ability C: learn about the way they react to echoes D: expose the relationship between seeing and touching
A: A

Q: I'm taking a test and have to guess the right answer to the question after the article. Article: Have you thanked your grandma today? You might want to consider it. A recent study found that kids live longer when a grandmother takes part in their daily lives. Most animals die soon after their childbearing years are over. Women, however, often live for many years after they stop having kids. To try to understand why, researchers from Finland looked at birth and death records of two communities from the 18th and 19th centuries, one in Finland and one in Canada. In these communities, 537 Finnish women and 3,290 Canadian women were grandmothers who had lived past the age of 50. For every decade they lived beyond 50, the researchers found that the women ended up with an average of two extra grandkids. It didn't matter what the differences in health or living conditions were between the two communities or from family to family. Grandchildren were also more likely to live into adulthood if their grandmothers were alive when they were born. If their grandmothers were younger than 60 at the time, that was even better. The study also found that women had children 2 to 3 years earlier if their own mothers were still alive at that time than those whose mothers had died. The researchers suggested that grandmothers have provided important assistance in raising their grandchildren for at least the past 200,000 years. As a result, they helped extend everyone's lifespan. So, don't take your grandma for granted! Question: According to the passage, what influence did it have on a woman if her mother was still alive? Options: A: She was also more likely to live into adulthood. B: She had children 2 to 3 years earlier. C: She ended up with an average of two extra grandkids. D: It had no influence on her.
A: B

Q: I'm taking a test and have to guess the right answer to the question after the article. Article: A young man from a village called Nawalapitiya married a young woman from Maliyuwa, a nearby village. They lived with the man's big family--his parents, his brothers, their wives and children. The family kept an elephant, in which the young woman soon took a great interest. Every day she fed it with fruit and sugar. Three months later the woman went back to her parents' home, having quarreled with her husband. Soon the elephant refused to eat and work. It appeared to be ill and heart-broken. One morning after several weeks the animal disappeared from the house. It went to the woman's home. On seeing her, the elephant waved its trunk and touched her with it. The young woman was so moved by the act of the animal that she returned to her husband's home. Question: After the young woman left her husband's home, the elephant _ . Options: A: returned to the forest B: was sad because it missed her C: went to look for a new home D: was sick because nobody fed it
A: B