Pollution Crossword

5. they affect the distance you can see
7. the process of being moved
9. fog or haze combined with smoke and other atmospheric pollutants
11. Example: Carbon Dioxide
16. A layer of gas that protects us from UV rays
17. Example: Coal
18. Volatile Organic Compound
19. As ____ moves, it picks up and carries pollution, which it can deposit into ponds, lakes, coastal waters, and underground sources of drinking water.

1. towns and cities cause _____ runoff
2. a substance that has a harmful or poisonous effects
3. a period of severe dust storms that greatly damaged the agriculture of the prairies
4. the process where pollutants cause the earth's climate to change
6. a state with seven cities with smog issues
8. water held underground in pores in rock
10. what caused the dust bowl
12. the science or practice of farming
13. a gas harmful to plants (O3)
14. A federal agency that protects the environment
15. the total mass of organisms in a given area or volume
17. the process of injecting liquid at high pressure into subterranean rocks, boreholes, etc., so as to force open existing fissures and extract oil or gas