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  3. The atmosphere and oceans are not the only parts of the environment being damaged. Rain forests are being quickly destroyed as w

The atmosphere and oceans are not the only parts of the environment being damaged. Rain forests are being quickly destroyed as w

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问题     The atmosphere and oceans are not the only parts of the environment being damaged. Rain forests are being quickly destroyed as well, and their survival is questionable. E. O. Wilson, a biologist at Harvard, calls the depletion(枯竭、耗尽)of rain forest areas "the greatest extinction since the end of the age of dinosaurs(恐龙)".
    Unlike some environmental issues, ram forest depletion has fortunately received significant public and media attention. Despite the opposition to the cutting down of rain forests, the problem continues. Every year, Brazil chops down on area of forest the size of the state of Nebraska. In addition to the Amazon’s rain forests, many other forests are being cut down as well. In Indonesia, Zaire, Papua New Guinea, Malaysia, Burme, the Philippines peru, Colombia, Bolivia, and Venezuela, rain forests that were once great have been lost.
    According to some estimates, 50 million acres of rain forest are cut down every year. The United Nations says the figure is closer to 17 million acres. The World Wildlife Fund says that every minute, 25 to 50 acres are cat or burned to the ground.
    The world’s growing population has been a primary reason of rain forest destruction. More people need land to live on and wood products to consume. Limiting population growth may be the first in a series of steps that would limit the destruction of the rain forests.
In the opinion of the author, ______ are being destroyed terribly at present.
选项 A、the oceans
B、the atmosphere
C、the rain forests
D、all the above
答案D
解析
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