XERCISE 14. Fill in gaps with the missing words in the following sentences; the first letter of each word has been given

1. People often pollute their surroundings. 2. People dirty the soil with too many fertilizers.3. People scatter rubbish and litter on the land. 4. Cars fill the air with the noise.5. Environmental pollution causes disastrous processes. 6. The pollution problem is complicated.7. Factories discharge much of the material that pol¬lutes air and water. 8. Pollution can be reduced.9. Exposure to large amounts of radiation can cause cancer. 10. International agreements ban most testing of nuclear weapons.