Ответы на вопрос:
1. this passage is about (d) destructive human activity. 2. every year thousands of species of animals (d) die out. 3. acid rain is caused by (d) emissions of industrial enterprises. 4. which of the following is true? (c) if we don't make an attempt to stop acid rains we may never see some animals again. 5. what was not mentioned in the text? (a) acid rain is capable of dissolving some rocks and stones. 6. factory smoke (d) can travel hundreds of miles. 7. scientists think acid rain (d) is killing trees.
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