Across
- 3. The accumulation of pollutants at successive levels of the food chain.
- 5. All the bodies of fresh water, salt, ice and snow that are found above the ground.
- 6. A planar, underground surface beneath which earth materials, as soil or rock, are saturated with water.
- 7. An artificial body of water that usually forms behind a bomb.
- 8. An increase in the amount of nutrients, such as nitrates, in a marine or aquatic ecosystem.
- 10. Pollution that comes from specific sites.
- 11. The area of land that is drained by a water system.
- 13. A process of removing salt from the ocean water.
Down
- 1. A microorganism, another organism, a virus, or a protein that causes disease and infectious agent.
- 2. Pollution that comes from many sources rather than from A single site.
- 4. Treatment of water to make it safe and acceptable for human use.
- 9. A body of rock or sediment that stores ground water & allows the flow of ground-water.
- 12. Environmental design of residential & park land using various methods for minimizing the need for water use.