Unit 4 vocab

4. mixture of fresh and salt water
8. The upper level of the saturated zone of groundwater
9. water that fills the cracks and spaces in underground soil and rock layers
13. water pollution that does not have a specific point of origin; "You cannot easily point to it.
14. The area subject to flooding during a given number of years according to historical trends.
15. A body of rock or sediment that stores groundwater and allows the flow of groundwater.
16. water that flows over the ground surface rather than soaking into the ground
17. The amount of energy required to raise the temperature of 1 gram of a substance by 1 degree celcius
19. Ability of rock or soil to allow water to flow through it
20. Does not contain any salt and can be rivers, lakes, streams,ponds, and wetlands
21. the rigid outer part of the earth, consisting of the crust and upper mantle.
22. Evaporation of water from the leaves of a plant
23. The area of land drained by a river and its branches
24. the volume of open spaces in rock or soil

1. 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.
2. the quantity of water in a stream that passes a given point in a period of time
3. an area of land that drains all the streams and rainfall to a common outlet
5. the large circular surface current pattern found in each ocean
6. The gradual sinking of land. The condition may result from the removal of groundwater or oil, which is frequently instrumental in supporting the overlying rock and soil.
7. The movement of deep, cold, and nutrient-rich water to the surface
10. the process by which surface water enters the soil
11. pollution that enters a body of water from a specific source; "You can easily point to it"
12. zone where all open spaces in sediment and rock are completely filled with water
18. A chemical intended to kill insects and other organisms that damage crops.