Unit 4 vocab

2. The upper level of the saturated zone of groundwater
5. 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.
7. Does not contain any salt and can be rivers, lakes, streams,ponds, and wetlands
8. water that flows over the ground surface rather than soaking into the ground
10. The movement of deep, cold, and nutrient-rich water to the surface
15. Ability of rock or soil to allow water to flow through it
18. A chemical intended to kill insects and other organisms that damage crops.
19. an area of land that drains all the streams and rainfall to a common outlet
21. water pollution that does not have a specific point of origin; "You cannot easily point to it.
23. mixture of fresh and salt water
24. zone where all open spaces in sediment and rock are completely filled with water

1. 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.
3. The amount of energy required to raise the temperature of 1 gram of a substance by 1 degree celcius
4. the rigid outer part of the earth, consisting of the crust and upper mantle.
6. pollution that enters a body of water from a specific source; "You can easily point to it"
9. the quantity of water in a stream that passes a given point in a period of time
11. the large circular surface current pattern found in each ocean
12. A body of rock or sediment that stores groundwater and allows the flow of groundwater.
13. the process by which surface water enters the soil
14. water that fills the cracks and spaces in underground soil and rock layers
16. The area subject to flooding during a given number of years according to historical trends.
17. Evaporation of water from the leaves of a plant
20. The area of land drained by a river and its branches.
22. the volume of open spaces in rock or soil