Answer the questions: 1. 1.When did the problem of pollution become dangerous?

2. What problems threaten human lives on the Earth?

3. What are the most dangerous pollutants?

4.. What is the main reason for the greenhouse effect and acid rains on our planet?

СОР| Are the statements True, False or Not Given?

5.If nothing is done about it, one day all will be able to live in our seas.

6. Every ten minutes one kind of animal, plant or insect dies out forever

7. Our government pay great attention to this problem Total:7

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khudobeidiana    3   09.12.2020 13:07    15