* Answer the following questions. 1. What is the biggest enemy of the environment? 2. What are the causes of air pollution? 3. What's wrong with aerosols? 4. What is the function of the Ozone Layer? 5. Why is water suffering from pollution? 6. Why do you think we should all be environment friendly?

1) pollution
2) cars and buses
3) they pollute the air
4) The ozone layer absorbs 97 to 99 % of solar radiation
5) Because there are a lot of factories that drain waste into the water
6)Because we have only one planet,so we should love and care about nature

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I have often heard this story. You expect us to Believe you? To turn, critically looking at My dress. I think that they are right. It is expected that he will move over For me it was a joy to see him. I find it hard to remember names. it was hard to keep his word. I wish my friends were with honest. the fact that he left so early? He liked that his son will spend the summer at camp, I'm Sorry that I mentioned your name. She didn't approve of what he much time he spends on his Collection. She heard a baby crying. He felt that he was trembling. When I arrived, I discovered that my friend is still waiting for me.