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thanhhoai190703
2 năm trước
Air pollution is a cause of ill-health in human beings. In a lot of countries there are laws limiting the amount of smoke which factories can produce. Although there isn’t enough information on the effects of smoke in the atmosphere, doctors have proved that air pollution causes lung diseases. The gases from the exhausts of cars have also increased air pollution in most cities. The lead in petrol produces a poisonous gas which often collects in busy streets surrounded by high buildings. Children who live in areas where there is a lot of lead in the atmosphere cannot think as quickly as other children and they are clumsy when they use their hands. There are other long-term effects of pollution. If the gases in the atmosphere continue to increase, the earth’s climate may become warmer. A lot of the ice near the Poles may melt and may cause serious floods. 1. What can make people sick? ___________________________________________________ 2. Where does smoke come from? ___________________________________________________ 3. Can air pollution cause lung diseases? ___________________________________________________ 4. What else can cause air pollution in cities? ___________________________________________________ 5. Why does the earth’s climate become warmer? ___________________________________________________
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Đọc và trả lời, giải thích rõ vì sao lại chọn đáp án đó Historians are torn when asked to identify the birth of American culture. Some suggest that it took root in Jamestown, arguing that as soon as there were white people in America, they were already uniquely American. Others argue that the culture did not really differ from European cultures until the First Great Awakening. They suggest that the religious revival that spread throughout the colonies made Americans aware of other English settlers in the New World. And, they continue, since this revival took place in a more public way than it did in England, it was the birth of American community. Still other historians place the origins of American culture on the battlefields of the French and Indian War. It is true that the conflict led indirectly to the American Revolution, which led, in turn, to America itself existing. However, it is a bit naïve to believe that violence can birth a peaceful culture. It is far more likely that a culture did not get created so much as slowly adapted and formed. --------------- Each of the following has been suggested as being responsible for the emergence of American culture EXCEPT A. the American Revolution B. the First Great Awakening C. the arrival of white settlers in Jamestown D. the French and Indian War

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