Water Resources

2. ,the input process of water percolating into a aquifer.
5. ,removing the salt from water to obtain fresh water.
8. ,an aquifer surrounded by a layer of impermeable rock or clay.
11. ,low amounts of nutrients such as phosphorous and nitrogen.
13. ,is a body or rock or sediment that stores groundwater and allows the flow of groundwater.
14. ,canals or ditches used to carry water from one location to another.
15. , an aquifer that is simply porous rock covered by soil.

1. ,the uppermost level at which the water in area fully saturates the rock or soil.
3. ,crops grown in fertilization water and no soil.
4. ,similar to levee but built to prevent ocean waters from flooding adjacent land.
6. ,when the pumping of fresh water out of a well is faster than the recharge.
7. ,an enlarge bank built on each side of the river.
9. ,high level of productivity.
10. ,a moderate level of productivity.
12. ,a barrier that runs across a river or stream to control the flow of water.