Answer:
1. Watershed.
2. Recharge zone.
3. Potable.
4. Pathogen.
5. Non-point source pollution.
6. Artificial eutrophication.
7. 1972 Clean Water Act.
8. Ground water.
9. B
10. D
11. C
12. D
Explanation:
1. Watershed: Mississippi River. A watershed is a land area or ridge of land that usually sheds or drains water into a specific body of water.
2. Recharge zone: area above an aquifer. This is an area where water is able to infiltrate through a porous, fractured or permeable materials such as rocks, sand, crack basalt, etc.
3. Potable: bottled water. Potability refers to the quality of water that makes it good, safe and healthy for drinking.
4. Pathogen: bacteria.
5. Non-point source pollution: multiple sources.
6. Artificial eutrophication: fertilizer runoff.
7. 1972 Clean Water Act: law designed to improve water quality.
8. Ground water: surface water that percolates through soil.
9. Ninety-seven percent of the world’s water resources are found in: salt water.
10. Earth’s surface water is found in: all of the above (lakes, streams and rivers).
11. Most of the oil that pollutes the ocean comes from: runoff from cities and towns.
12. The three major global uses of fresh water are: residential, agricultural, and industrial uses.
