Water Crossword

5. Nutrient-rich near the shore,where aquatic life is diverse and abundant
6. An artifical lake formed by a dam
9. Bottom-dwelling organisms, such as mussels, worms, and barnacles
11. An area in which fresh water from a river mixes with salt water from the ocean
12. The accumulation of pollutants at successive levels of the food chain
14. An increase in the amount of nutrients in an aquatic ecosystem
16. When the temperature of a body of water increases, this happens
17. In which pollution is discharged from a single source
19. A method of providing plants with water from sources other than direct precipitation
20. The process of removing salt from salt water
21. Limestone ridges built by tiny coral animals
22. This means 'Safe to drink'

1. The introduction of chemical, physical, or biological agents into water and affect it in a bad way
2. An area where land is periodically underwater
3. Long,thin islands that help protect the mainland and coastal wetlands
4. Swampslocatedalongcoastalaresoftropicalandsubtropicalzonesarethis
7. Water that contains waste from homes or industry
8. The bottom of a pond or lake,which is inhabited by decomposers
10. Fertilizer from farms,lawns, and gardens are some of the largest sources of this
13. Organisms that float near the surface of water
15. These develop in estuaries where rivers drop their load of mineral-rich mud
18. Free-swimming organisms, such as fish, turtles, and whales