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Article: A new study suggests that the more teenagers watch television, the more likely they are to develop depression as young adults.But the extent to how much TV may be to blame is a question that the study leaves unanswered. The researchers used a national long-term survey of adolescent health to look into the relationship between media use and depression.They based their findings on more than 4,000 adolescents who were not depressed when the survey began in 1995. As part of the survey, the young people were asked how many hours of television or videos they watched daily.They were also asked how often they played computer games and listened to the radio. Media use totaled an average of 5 and one half hours a day.More than 2 hours of that was spent watching TV. 7 years later, in 2002, more than 7 percent of the young people had signs of depression.The average age at that time was 21. Brian Primack at the University of Pittsburgh medical school was the lead author of the new study.He says every extra hour of television meant an 8 percent increase in the chances of developing signs of depression. The researchers say they did not find any such relationship with the use of other media such as movies, video games or radio.But the study did find that young men were more likely than young women to develop depression given the same amount of media use. Doctor Primack says the study did not explore why watching TV causes depression.But one possibility, he says, is that it may take time away from activities that could help prevent depression, like sports and socializing. It might also affect sleep, he says, and that could have an influence. The study was just published in the Archives of General Psychiatry. In December, the journal Social Indicators Research published a study of activities that help lead to happy lives.Sociologists from the University of Maryland found that people who describe themselves as happy spend less time watching television than unhappy people.The study found that happy people are more likely to be... Question: More than 4,000 adolescents were chosen as the subjects of the study because they _ . Yes or no, is the answer "were free from depression"?
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No

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Article: Nowadays, the food we eat seems to have great effects on our health. Although science has made enormous steps in making food more fit to eat, it has, at the same time, made many foods unfit to eat. Some research has shown that perhaps eighty percent of all human illnesses are related to diet and forty percent of cancer is related to the diet as well, especially cancer of the colon. Different cultures are more likely to cause certain different illnesses because of the food that is characteristic in these cultures. That food is related to illness is not a new discovery. In 1945, about 68 years ago, government researchers realized that nitrates, commonly used to preserve color in meats, and other food additives, caused cancer. Yet, these carcinogenic additives remain in our food, and it becomes more difficult all the time to know which things on the packaging labels of processed food are helpful or harmful. The additives which we eat are not all so direct. Farmers often give penicillin to beef and living animals, and because of this, penicillin has been found in the milk of treated cow. Sometimes similar drugs are given to animals not for medical purposes, but for financial reasons. The farmers are simply trying to fatten the animals in order to obtain a higher price on the market. Although the Food and Drug Administration (FDA) has tried repeatedly to control these procedures, the practices continue. Question: How has science done something harmful to mankind? Yes or no, is the answer "Because of the application of science, some potentially harmful substances have been added to food."?
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Yes

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Article: Wanda, the neighborhood witch, was a good witch and had been one for about 221 years. Her fondest dream was to become a fairy godmother. She had been going to the Fairy Godmother Academy for 103 years, learning fairy godmother magic: how to turn pumpkins into coaches, how to make things vanish in clouds of smoke, even how to change mice into horses and footmen. Just that very morning the principal of the Academy had said Wanda was ready for her final test. She was to change the first animal she met into something else. The animal was to be so happy at becoming whatever it became that it would say, "Oh, happy day! I'm a..." If it did, Wanda would pass the test. She would become a fairy godmother, with a sparkling pink dress, a golden crown, and a magic wand tipped with a shining star. However, if she failed, she would have to start school all over again--all 103 years of it. "Good luck," the principal said as Wanda left the Academy. The very first animal Wanda bumped into was Charley, a little green frog who sat in a pond by the side of the road catching bugs with his long, sticky tongue and croaking "Baroomp! Baroomp!" When Charley saw Wanda he jumped onto a lily pad. "Hi," he cried. "Witch way are you going? Ha, ha. That's a joke, Wanda. 'Witch way are you going?' Get it?" "I get it, Charley," replied Wanda, "but it's not much of a joke. Anyway, I'm glad you're here. I have a surprise for you. You'll be so happy." Then, without even an "if you please," Wanda waved her wand, said a magic word, and poof ! Charley, the little green frog, turned into a prince! He was a handsome prince but a wet one. The lily pad had collapsed under his weight and dumped him into the water. Charley-turned-prince stood up and looked at his reflection in the water. "Hey!" he cried. "You turned me into a prince! It's a surprise all right, but I don't want to be a prince. I want to be a frog! Change me back right now!" "Oh, dear," Wanda said. "You know I don't like to be yelled at, Charley. Now you've made me forget the reverse... Question: What does the passage want to tell us? Yes or no, is the answer "A good heart conquers ill fortune."?
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No