Across
- 3. Natural damage to the earth
- 8. Matter sunkenat the bottom of a liquid
- 12. many different things
- 13. Substance that pollutes something
- 14. A school of fish
- 15. an estuary that stretches over six states
- 16. a body of water in which fresh and slat water mix
- 18. how clear the water is
- 19. areas sounding body of water that drains into it
Down
- 1. a biological community
- 2. another word for plants
- 4. covered in water
- 5. a river in Maryland
- 6. Areas where water covers the soil
- 7. a river flowing into a larger lake or river
- 9. nourishment and essential growth
- 10. A place where oysters refuge and grow
- 11. An aquatic plant
- 17. relating to water