Water conservation

3. the process of drilling down into the earth before a high-pressure water mixture is directed at the rock to release the gas inside.
5. process by which water changes from a liquid to a gas or vapor.
6. unwanted pollution of something by another substance
8. below-average precipitation in a given region, resulting in prolonged shortages in its water supply, whether atmospheric, surface water or ground water.
11. generally occurs in the atmosphere when warm air rises, cools and looses its capacity to hold water vapor.
12. can be liquid, vapor, or ice
16. area of land that catches rain and snow and drains or seeps into a marsh, stream, river, lake or groundwater.
17. the presence of any substance or material that may cause a harmful effect on human, animal and plant

1. Also known as Confined Agricultural Feeding Operation
2. the action or process of filtering something.
4. the practice of cultivating the land or raising stock
7. warming a gradual increase in the overall temperature of the earth's atmosphere generally attributed to the greenhouse effect caused by increased levels of carbon dioxide, chlorofluorocarbons, and other pollutants.
9. the action of conserving something, in particular.
10. a large natural or artificial lake used as a source of water supply.
13. an excavation or structure created in the ground by digging, driving, boring, or drilling to access groundwater in underground aquifers
14. a large mass of ice floating at sea; usually broken off of a polar glacier
15. waste water and excrement conveyed in sewers