Across
- 2. free-floating microscopic animals
- 3. any form of ocean life that lives on the floor
- 7. type of rock formed by volcanoes
- 9. sustainable farming of marine life
- 12. process of moving sediment
- 14. where different organisms live together
- 15. naturally occurring gas composed of 3 oxygen atoms
- 16. process of breaking down sediment
- 17. free-floating microscopic plants
- 19. animals capable of moving on their own
- 20. layer of air that surrounds the planet
Down
- 1. process of drop sediment in a place
- 4. sound navigation and ranging
- 5. freshwater and seawater mix
- 6. measure of how hot or cold something is
- 8. all organisms that drift in ocean currents
- 10. type of rock formed by compaction
- 11. swimming
- 13. wind smoothing down rock
- 18. all water on earth