Across
- 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
Down
- 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