Across
- 3. manned deep ocean research submersible
- 5. water safe for humans to drink
- 6. underwater remotely operated machine
- 8. process of liquid slowly passing through a filter
- 9. water cannot pass through
- 12. population of how many included in a herd or group
- 14. underground layer of permeable rock
- 16. nonliving factors
- 19. process of water penetrating from the ground into the soil
- 20. sticks together
Down
- 1. rapid growth of algae
- 2. cloudiness of a fluid
- 3. water sticks to non water molecules
- 4. interaction between organisms or species
- 7. being passed down from generation
- 10. factors in an environment that restrict population growth
- 11. a person who studies the ocean and its wildlife
- 13. water can pass through
- 15. portion of land drained by a river and its tributaries
- 17. living factors
- 18. an area where life exists