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