Across
- 3. ______________ used to help grow crops that ends up in the Gulf of Mexico causes the dead zone
- 4. Large aquifer under the great plains that supplies water for irrigation
- 8. The Exxon Valdez oil spill happened off the coast of this state
- 9. Water that has already been "used" in a house, but not toilet or kitchen sink water
- 11. largest carbon reservoir on earth
- 14. This type of weathering breaks rocks into smaller sizes
- 15. a substance that causes cancer
- 16. using microorganisms to help clean up an oil spill, or any pollutant
- 17. term for an impermeable rock layer above a ground water reservoir
- 18. term for the amount of energy needed to raise the temperature of a substance by one degree
- 20. Water is an effective _________ because minerals readily dissolve in it
Down
- 1. This type of weathering dissolves minerals
- 2. when a pollutant has a higher concentration on food higher in the food chain
- 5. this pollutant used to be part of gasoline and is known to lower IQ values in children
- 6. Liquid water converted to water vapor in plant leaves
- 7. the ________ the water flowing through lead pipes the more likely it is to contain lead
- 10. period of time when a lot of soil was lost from the American great plains
- 12. this number of products make up 65% of the world's food supply
- 13. used to kill bugs that are harmful to plants
- 19. Removal of soil by wind or flowing water