The earth is much worse than before because of serious pollution： air pollution， soil pollution and water pollution． What should humans do to save the earth？

    First， we should not produce too much rubbish． Rubbish takes up much space， so there will not be enough space for people to live in． What's worse， it will pollute soil and fewer plants can grow．

    Next， we should keep the sea and rivers clean． Fish can't live in polluted water， so it may be impossible for us to enjoy so much seafood in the future．

    Third， everyone should help to keep the air clean． Polluted air is harmful to our health．

    To make the earth a better place， everyone should learn to love our planet from now on． And everyone should play a part in saving the earth．

How to save the earth

Three kinds of pollution： air pollution， （1）　　 and water pollution
First	Don't produce （2）　　． It takes up much space．
（3）	Keep the sea and river clean． Fish can't live in polluted water．
Third	Keep the air clean． Polluted air is （4）　　 to our health．
Everyone should learn to love and play a part in （5）　　 the earth．