Water unit 4

3. water distribution, Most water is salty, with only a small amount fresh and usable.
6. dead zones, Areas with low oxygen caused by nutrient pollution.
7. cycle, Process that moves nitrogen through the environment and living things.
10. Water molecules stick to other surfaces or materials.
11. ,Water molecules stick tightly to each other, creating a “skin.”
12. capacity, Water takes a long time to heat or cool because of this.

1. solubility Trend, Gases dissolve better in cold liquids and under higher pressure.
2. of wetlands, Natural areas that filter water, reduce floods, and provide habitat.
4. buffer, Vegetation along waterways that protects water quality.
5. ,A mixture where one substance dissolves into another.
8. ,Excess nutrients cause algae blooms and oxygen loss.
9. Boiling Point ,Saltwater boils higher and freezes lower than freshwater.