Article: Climatic conditions are delicately adjusted to composition of the Earth's atmosphere. If there were a change in the atmosphere -- for example, in the amounts of atmospheric gases -- the climate would probably change also. A slight increase in water vapor , for example, would increase the heat-keeping capacity of the atmosphere and would lead to a rise in global temperatures. The level of carbon dioxide, CO2, in the atmosphere has an important effect on climatic change. Most of the Earth's incoming energy is short-wavelength radiation , which tends to pass through atmospheric CO2easily. The Earth, however, reradiates much of the received energy as long-wavelength radiation , which CO2absorbs and then goes toward the Earth. This phenomenon, known as the greenhouse effect, can result in an increase in the surface temperature of a planet. An extreme example of the effect is shown by Venus, a planet covered by heavy clouds composed mostly of CO2, whose surface temperatures have been measured at 430~C.If the CO2 content of the atmosphere is reduced, the temperature falls. According to one respectable theory, if the atmospheric CO2concentration were halved, the Earth would become completely covered with ice. Another equally respectable theory, however, states that a halving of the CO2concentration would lead only to a reduction in global temperatures of 3degC. If, because of an increase in forest fires or volcanic activity, the CO2content of the atmosphere increased, a warmer climate would be produced. Plant growth, which relied on both the warmth and the availability of CO2, would probably increase. As a consequence, plant would use more and more CO2. Eventually CO2levels would decrease and the climate, in turn, would become cooler. With reduced temperatures many plants would die; CO2would thus be returned to the atmosphere and gradually the temperature would rise again. Thus, if this process occurred, there might be a long-term oscillation in the amount of CO2present in the atmosphere, with regular... Question: Which of the following questions does the information supplied in this passage try to answer? Yes or no, is the answer "What might cause a series of regular increases and decreases in the amount of CO2in the atmosphere?"?
No

Article: In Indonesian 2-year-old boy who hit the headlines last month due to a 40-a-day cigarette addiction has reportedly cut down to 15-a-day from 40, after the child received treatment. Images of a two-year-old boy smoking cigarettes have shocked people in Indonesia. The little boy, Ardi Rizal from Sumatra, is addicted to nicotine and smokes 40 cigarettes a day. His father, Mohammed Rizal, thinks there's no problem with his son's bad habit. He told reporters that his child looked healthy and that it was the only thing that was important. He went on to explain how Ardi took up smoking when he was 18 months old. That was when he gave his son his first cigarette. Now he's totally _ ; he screams if his father doesn't let him smoke. Ardi's story is part of a worrying trend in Indonesia. It has one of the worst smoking records in the world, with a population of 250 million people. Government statistics show 25 percent of Indonesia teenagers have smoked and that about 3 percent are regular smokers. Indonesia is the world's third largest smoking nation. It is reported that over a third of the country smokes, and 90% of the country's smokers smoke a native cigarette which has twice the levels of tat and nicotine in an average cigarette used around the world. Cigarettes are everywhere and smoking is still seen as a socially acceptable practice. Many people in the country do not know the health risks connected with smoking. Health Minister Endang Sedyaningsih said preventing youngsters from smoking would be very difficult because people believe smoking is a good thing. She said tobacco companies are well like because they sponsor many things from education to sporting and public events. She added, " This is the challenge we face in protecting youth from the danger of smoking". Question: It's not easy to forbid the youth to smoke because _ . Yes or no, is the answer "smoking is not considered a bad thing."?
No

Q: Article: Since the nineteen nineties, education has been required for all South Africans from age seven to fifteen. Last December, the government announced that seventy percent of students passed their final examination to finish high school. In 2008 the passage rate was about sixty-three percent. There have been increases each year since then. Professor Shireen Motala at the University of Johannesburg says access to basic education is no longer the problem in South Africa. She says most children stay in school until they are about sixteen. The problem now, she says, is that large numbers of them leave without completing high school. Students take an examination known as the matric in grade twelve, their final or "matriculation" year. Professor Motala notes that less than half the children who started school in 2000 sat for the matric last year. He said, "Only around forty-five percent survived, which means that a large number of children are falling by the wayside. And the concern is that where do those learners actually go to." Educational researchers also point to another problem. They say South African schools do not produce enough students with the skills for higher education in math and science. One of those researchers is Graeme Bloch. He says many schools are not well-equipped. "Because of poverty and limited resources, many children do not see laboratories and ninety-two percent of the schools do not have libraries." Also, education specialists say in many cases, teachers and school principals do not have the skills or training to do their jobs. In other cases, they are simply not doing their duty to provide an education. Professor Motala says a number of teachers were poorly trained during the system of apartheid, or racial separation in South Africa. Apartheid ended in 1994. Secondly, she says, teachers have been confused by the many educational reform efforts in the last fifteen years. And, finally, she thinks language differences in the classroom have not gotten as much attention as they should. Subjects... Question: What's the writer's attitude towards the future of education in South African? Yes or no, is the answer "optimistic"?
A: Yes

(Q).
Article: I learned how our attitudes made a big difference in our everyday lives from my friend Mary. She doesn't have any pets. I happened to see her outside on a -30 degree morning walking a dog. I felt sorry for Mary, out there walking a dog that's not hers in such cold weather. I thought maybe she was saying to herself, "Yeah, this is why I don't have any pets! I hate walking dogs." Later that day I saw Mary and said, "I saw you out there walking a dog this morning. Are you unhappy because you had to walk it on such a cold day?" To my surprise, she said that she enjoyed getting out there and walking the dog and that she got good exercise because of the dog. She also said she had talked to her brother, the dog's owner, who was on holiday in Orlando, Florida with his family. He said his children were enjoying Disney World and the resorts . His four-year-old son had breakfast with Mickey Mouse and said it was the best day in his life. Mary said, "If I can help my brother and his family have a wonderful time relaxing for a week, knowing that their pet is being loved and cared for, what more could I ask for?" She added, "It's worth it for me to make the sacrifice so that they can go and have fun." I learned a lesson from Mary. Question: What lesson did the author learn from Mary? Yes or no, is the answer "Helping others is also a kind of enjoyment."?
(A).
No