Question: Read the following article and select the best answer. Article: Because plants cannot move or talk, most people believe that they have no feelings and that they cannot receive signals from outside. However, this may not be completely true. People who studied plants have found out that plants carry a small electrical charge . It is possible to measure this charge with a small piece of equipment called "galvanometer". The galvanometer is placed on a leaf off the plant, and it records any changes in the electrical field of the leaf. Humans have a similar field which can change when we are shocked or frightened. A man called Backster used a galvanometer for his studies of plants and was very surprised at his results. He found that if he had two or more plants in a room and he began to destroy one of them - perhaps by pulling off its leaves or by pulling it out of its pot - then the galvanometer on the leaves of the other plants showed a change in the electrical field. It seemed as if the plants were signalling a feeling of shock. This happened not only when Backster started to destroy plants, but also when he destroyed other living things such as insects . Backster said that the plants also knew if someone had destroyed a living thing some distance away, because they signalled when a man who had just cut down a tree entered the room. Another scientist, named Sauvin, achieved similar results to Backster's. He kept galvanometers fixed to his plants all the time and checked regularly to see what the plants were doing. If he was out of the office, he telephoned to find out about the signals the plants were sending. In this way, he found that the plants were sending out signals at the exact times when he felt strong pleasure or pain. In fact, Sauvin could cause a change in the electrical field of his plants over a distance of a few miles simply by thinking about them. Question: Backster was surprised at the results of his studies because _ . - he destroyed an insect - he destroyed a plant by pulling off its leaves - he found that plants could express feelings of shock - he found that plants could move and speak after all
Answer: he found that plants could express feelings of shock

Question: Read the following article and select the best answer. Article: We all enjoy the colors of autumn leaves. Did you ever wonder how and why a fall leaf changes color? Where do the yellows and oranges come from? To answer those questions, we first have to understand what leaves are and what they do. Leaves are nature's food factories. Plants take water from the ground through their roots. They take a gas called carbon dioxide from the air. Plants use sunlight to turn water and carbon dioxide into glucose, which is a kind of sugar. Plants use glucose as food for energy and as a building block for growing. The way plants turn water and carbon dioxide into sugar is called photosynthesis, which means " putting together with light. " A chemical called chlorophyll helps make photosynthesis happen. Chlorophyll is what gives plants their green color. As summer ends and autumn comes, the days get shorter and shorter. This is how the trees "know" to begin getting ready for winter. During winter, there is not enough light or water for photosynthesis. The trees will rest, and live off the food they stored during summer. They begin to shut down their food-making factories. The green chlorophyll disappears from the leaves. As the bright green fades away, we begin to see yellow and orange colors. Small a-mounts of these colors have been in the leaves all along. Covered up by the green chlorophyll, we just can't see them in summer. The bright reds and purples we see in leaves are made mostly in the fall. In some trees, like maples, glucose is trapped in the leaves after photosynthesis stops. Sunlight and the cool nights of autumn cause the leaves turn this glucose into a red color. The brown color of trees like oaks is made from wastes left in the leaves. It is the combination of all these things that make the beautiful colors we enjoy in the fall. Question: Which of the following is True according to the passage? - Trees don't change colours with seasons. - Trees can still perform photosynthesis well in winter. - Trees have colours like yellow and orange even in summer. - Trees don't need food in winter.
Answer: Trees have colours like yellow and orange even in summer.

Question: Read the following article and select the best answer. Article: We all think that we see things as they really are. But according to a new report in Psychological Science, if we really want something, that strong wish may influence how we view our surroundings . Psychological scientists Emily Balcetis from New York University and David Dunning from Cornell University did a set of studies to see how our strong wish affects perception. In the first experiment, people who voluntarily took part in the study had to estimate how far a water bottle was from where it was sitting. Half of the volunteers were allowed to drink water before the experiment, while the others ate salty cookies, thus becoming very thirsty. The results showed that the thirsty volunteers estimated that the water was closer to them than volunteers who drank water earlier. Our strong wish for certain objects may also lead to behavioral changes. In a separate experiment, the volunteers threw beanbags towards the gift cards (worth either $25 or $0) on the floor, winning the card if the beanbag landed on it. Interestingly, the volunteers threw the beanbag much farther if the gift card was worth $0 than if it was worth $25 -- that is, they underthrew the beanbag when attempting to win the $25 gift cards, because they viewed that the gift cards as being closer to them. These findings show that when we want something, we actually view it as being physically close to us. When we see a goal as being close to us, it encourages us to keep on going to successfully gain it. Question: The experiment with beanbags is done to prove the relationship between _ . - psychology and the environment - wishes and behavior - space and distance - views and results
Answer:
wishes and behavior