Read the following article and select the best answer. Article: Seth DeBolt is a plant scientist at the University of Kentucky US. He and other scientists wanted to find a source of fuel that poor people in rural areas of developing countries could use to make electricity. The United Nations Development Program says a billion and a half people have no electricity. A billion others have an undependable supply. Professor DeBolt went on a study trip to rural Indonesia. He saw that there was very little waste in the use of agricultural products. Everything that farmers grew was used for something. Even the remains of fruit that people did not eat were fed to chickens. Little waste meant there was little that could be used for fuel. Growing a separate fuel crop would take land away from food crops. That was something Professor DeBolt did not want to do. DeBOLT said, "The people at most risk with respect to energy poverty, typically they're the same people who have food insecurity issues as it is. And then any change in availability would be most damaging to that group of people." But he found one item that was in plentiful supply and would not create competition between food and fuel. Coconut shells are generally thrown out. Yet Professor DeBolt says it has an "excellent" heating value. All someone needs is a way to release that energy. DeBolt says he and his team see possibilities for coconut power. "Coconuts are growing here and these are the areas where there is possibility for energy poverty to be eased at least in part by these small-scale production systems." The researchers say these systems could provide as much as thirteen percent of the energy needs of a country like Indonesia. Other tropical countries with large crops of coconuts and similar fruit could benefit, as well. But DeBolt says this is not a perfect solution. There are technical questions, like how to safely deal with the dangerous waste produced in the process. And there needs to be money to get these projects started. Question: Professor DeBolt went on a study trip to rural areas of developing countries to _ . - help farmers make full use of waste - seek certain materials to make electricity - persuade farmers to grow more coconuts - find a suitable place to carry out the experiment
seek certain materials to make electricity

(Question)
Read the following article and select the best answer. Article: More than one-third of adults in the United States are obese . In fact, over obesity has reached such proportions that one big-city mayor has gone about banning large-sized, sugary soft drinks and the First Lady has been on a campaign to control the dietary offerings in public schools. Even many adults who do not fit the clinic definition of obesity are still overweight, and a large percentage are looking for the best ways to lose weight. Reducing pounds largely comes down to the two-sided factors of diet and exercise. Not carrying out the first one enough, and not getting enough of the second one, ends up giving the individual a recipe for being overweight. Advising someone to eat less and exercise more might be the easiest advice possible, but it's also, partially, an oversimplification. Dieting has more to do with the types of food you eat than how much you eat. Reduce the amount of red meat in your diet. If you don't want to eliminate red meat altogether, choose cuts of meat with less fat content. Limit your intake of salt and starches. If you've got to have potato chips alongside your sandwich at lunch, choose the baked potato chips that contain less fat than the deep-fried chips. You might find you're really not sacrificing that much in terms of taste. A diet rich in fruits, vegetables, egg whites, fish and nonfat dairy products will certainly aid in the mission of losing weight. Drink more water and less sugary drinks. If you have to have a soda, a diet soda is a better option, but seltzer is an even better choice than that. It's important--if not always easy--to make sure you get at least some physical activity each and every day. If your feet won't allow for a regular jogging regimen, then make sure you take lots of walks. Next time you need to mail a letter, walk to the mailbox instead of driving. Try to work in a daily walk in your neighborhood. Question: You should _ when you want to lose weight - try not to fit the clinic definition of obesity - diet as well as exercise enough - get little exercise every day - focus your attention on diet only
(Answer)
diet as well as exercise enough

Ques: Read the following article and select the best answer. Article: An Australian inventor has designed and built an environmentally friendly ferry that uses solar and wind power to transport people around Sydney Harbor. Robert Dane and his Solar Sailor were given the top prize at the Australian Design Awards recently. The Solar Sailor has been in use for six months. It uses four sources of energy for its power -- solar, wind, battery power with stored solar energy and a fuel generator in store all controlled by computers. The ferry can travel up to 7.5 knots on just wind and solar power. It's solar wings and fiberglass solar panels which not only take in sunlight and store it in batteries, but also act as sails. "We angle our solar panels to the sun in two planes , which increases the amount of energy we get from the sun by 40 percent," Dane says. "And also we can use that same structure to do another job, which is also the sail, and so these wing sails actually push the ferry forward just like a soft sail does." Computers check the sun and wind and angle the solar wings to take in the most sunlight. If there isn't much wind or it is a cloudy day, energy stored in the batteries runs the electric motor for up to five hours. "If the batteries are too low, then the computer turns the generator on so the boat is always able to meet a commercial schedule, or get from point A to point B no matter what," Dan explains. Dane got his idea for the Solar Sailor from a book on insects. He was amazed how insects use their wings to collect solar energy to warm themselves. "When I read that, I realized there was a good example in nature for what we were going to do, which was to use a solar wing to collect solar energy and also to sail," he says. Question: What is the purpose of writing this article? - To praise the designer Robert Dane. - To make an advertisement. - To tell us to learn from nature. - To introduce a new invention.
Ans: To introduce a new invention.

Ques: Read the following article and select the best answer. Article: All 20 children who died in a shooting at a school in Connecticut were aged between six and seven, according to an official list of the dead. The state's chief medical examiner said the gunman used a rifle as his main weapon, and all the victims appeared to have been shot several times. The gunman, named in media reports as Adam Lanza, killed his mother before driving to the school and opening fire. Six adults, all women, were also killed before the gunman shot himself dead. The head teacher at Sandy Hook school in Newtown, Dawn Hochsprung, is listed among the dead, along with adults Rachel DaVino, Anne Marie Murphy, Lauren Russo, Mary Sherlach and Victoria Soto. Eight boys and 12 girls were killed - all but four of them were aged six. The youngest, Noah Pozner, celebrated his birthday only last month. A woman who worked at the school was the only person to be shot and survive. Scores of people have left flowers at a memorial outside the school, and on Saturday evening hundreds attended a candlelight vigil . President Barack Obama is to visit Newtown on Sunday to meet families and speak at an interfaith vigil at the town's high school. After the attack, he urged "meaningful action" against gun crime in the US. "As a country we have been through this too many times," he said in an emotional White House address. Question: Among the student victims, how many are just six years old? - 12 - 20. - 4. - 16
Ans:
16