Across
- 2. - noun the outer region of the Earth's atmosphere
- 3. - noun a ridge of land that separates two adjacent river systems
- 5. - noun underground bed or layer yielding ground water for wells and springs etc
- 7. - noun a colorless gas (O3) acts as a screen in the stratosphere for ultraviolet radiation
- 9. - noun a colorless odorless gas used as a fuel
- 10. - noun being able to absorb fluids
- 13. Water - water that collects on the surface of the ground.
- 14. - noun a common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas; constitutes 78 percent of the atmosphere by volume; a part of all living tissues
- 16. Dioxide -an important heat-trapping gas, also known as a greenhouse gas, that comes from the extraction and burning of fossil fuels (such as coal, oil, and natural gas), from wildfires, and natural processes like volcanic eruptions.
- 18. -a renewable source of energy that generates power by using a dam or diversion structure to alter the natural flow of a river or other body of water.
- 22. Water - naturally occurring salty water, especially seawater
- 26. Quality -the condition of the water, including chemical, physical, and biological characteristics
- 28. - noun the slow passage of a liquid through a filtering medium
- 30. - noun the property of something that can pass through by a liquid
- 31. - noun the mass of air surrounding the Earth;
- 33. - noun the regions of the surface and atmosphere of the Earth (or other planet) where living organisms exist
- 35. - noun the atmospheric layer between the troposphere and the mesosphere
- 36. - noun the falling to earth of any form of water (rain or snow or hail or sleet or mist)
- 37. - adj. temperature and wind and clouds and precipitation
- 38. - noun the atmospheric layer between the mesosphere and the exosphere
- 40. - noun surplus liquid (as water)
- 42. Pressure -The air around you has weight, and it presses against everything it touches
- 43. - noun an instrument that measures atmospheric pressure
Down
- 1. - noun atmospheric moisture that has condensed because of cold; the process of changing from a gaseous to a liquid or solid state
- 4. - water held underground in the soil or in pores and crevices in rock.
- 6. - noun the amount per unit size
- 8. - noun the act of contaminating or polluting; including (either intentionally or accidentally) unwanted substances or factors
- 11. - noun a colorless odorless tasteless nonflammable gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in the earth's crust
- 12. - noun the relative proportion of salt in a solution
- 15. cycle - involves the continuous circulation of water in the Earth
- 17. - noun results from applying force to an area of skin
- 18. - noun the watery layer of the earth's surface; includes water vapor
- 19. - noun the atmospheric layer between the stratosphere and the thermosphere
- 20. - noun the process of extracting moisture; the process of becoming a vapor
- 21. - noun undesirable state of the natural environment being contaminated with harmful substances
- 23. - noun a change directly from the solid to the gaseous state without becoming liquid
- 24. - noun the outermost atmospheric layer
- 25. - noun elevation especially above sea level or above the earth's surface
- 27. - noun the lowest atmospheric layer; from 4 to 11 miles high (depending on latitude)
- 29. -naturally occurring water that is not salty,
- 32. - noun the mass of air surrounding the Earth
- 34. - noun the solid part of the earth consisting of the crust and outer mantle
- 37. Vapor - gaseous phase of water
- 39. - noun the watery layer of the earth's surface; includes water vapor
- 41. Gas - absorbing infrared radiation, e.g., carbon dioxide and chlorofluorocarbons