water systems

3. in water.
5. water held underground in the soil or in pores and crevices in rock.
6. word origin and
8. basin A drainage basin is any area of land where precipitation collects and drains off into a common outlet,
10. atmosphere is the layer of gas that surrounds Earth.
12. the rigid outer part of the earth, consisting of the crust and upper mantle.
13. cycle the cycle of processes by which water circulates

1. The scientific study of the properties,
2. warming a gradual increase in the overall temperature of the earth's atmosphere generally attributed to then greenhouse effect caused by increased levels of carbon dioxide, chlorofluorocarbons, and other pollutants.
4. All of the Earth's water, including surface water
7. the earth's oceans,
9. a slowly moving mass or river of ice formed by the accumulation and compaction of snow on mountains or near the poles.
11. Salinity is the measure of all the salts