1. it's evidence that this ocean is clean and environmentally______ .( pollute)
2. Diseases are primarily due to ______ food and air. (contaminate)
3. while some Chemicals may be harmless others can cause ______. (damage)
4. life expectancy has gone down due to ____ diseases caused by air pollution. (die)
5. in remote regions, the air is pure and the crops are free of _______ insecticides. ( poison)
6. some scientists warn that light _____ damages people and animals. ( pollute )
7. many chemicals have a ______ effect on the evironment. ( damage)
8. the dumping of _____ i sewage into the sea is a source of ocean pollution. ( treat)
9. A______ is a substance that makes something dirty, polluted, or poisonous. ( contaminate)
10. Water pollution can lead to the ______ of aquatic plants and animals. (die)
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Sinh Học lớp 12
