Across
- 1. One of the main problem of our environment
- 4. forms a large reef in sea
- 8. zone shoreline between low tide and high tide
- 9. tide the highest point of water
- 12. excessive nutrients into the lake
- 14. tree that acts as barrier in coastal area
- 17. low salinity water level
- 19. tide the lowest point of water level
- 20. composed of 2 hydrogen and 1 oxygen
- 21. high salinity water; other term for marine water
- 22. zone interface between the land and water
- 23. variety
- 24. large natural bodies of standing low salinity water in earth’s surface
Down
- 1. the deepest part of lakes where photosynthesis doesn’t occur
- 2. Top layer of freshwater lakes
- 3. Strongly swimming organism
- 5. open sunlight surface layer
- 6. clouded by algal bloom
- 7. organism that breakdown organic compound
- 10. sea huge volume of saltwater
- 11. bottom dweller
- 13. weakly swimming and free-floating organism
- 15. when river meets the sea
- 16. planet were we live
- 18. drainage basin