Across
- 2. Water from rain and snow seep into the ground and removes excess minerals from the water.
- 5. Low-oxygen areas in the world's oceans and in large lakes.
- 7. The volumetric flow rate of groundwater through an aquifer
- 9. excessive richness of nutrients in a lake or other body of water, frequently due to runoff from the land, which causes a dense growth of plant life and death of animal life from lack of oxygen.
- 10. A chemical process where a solid turns into a gas without going through a liquid stage.
- 14. The draining of water off of the ground surface
- 15. is the biological oxidation of ammonia or ammonium to nitrate
- 17. Measures how clear water is.
- 18. The act of breathing
- 19. Oxygen How much oxygen is separated in water, how much oxygen is left for living organisms
Down
- 1. Rain, snow, sleet, or hail that falls to the ground.
- 3. A slow-moving mass of ice formed by the accumulation and compaction of snow on mountains or near the poles.
- 4. The measure of hydrogen ion in a solution, (This scale usually ranges from 0 to 14
- 6. is the process where bacteria turn nitrogen into ammonia.
- 7. loss of nitrogen from the soil, usually results in nitrogen escaping into the atmosphere or when bacteria consumes it.
- 8. holding as much water or moisture as can be absorbed; thoroughly soaked.
- 11. The process by which water enters the ground soil.
- 12. The process plants and animals use ammonia formed from nitrification and nitrogen fixation.
- 13. A body of permeable rock which can contain or transmit groundwater.
- 16. Fixing is a process by which molecular nitrogen in the air is converted into ammonia or related nitrogenous compounds in soil.