Across
- 6. surface of the sea floor
- 8. water ecosystem
- 9. living interacting with environment
- 11. deep, deep in darkness
- 14. high tides and low tides
Down
- 1. soil as a filter
- 2. shines bright for photosynthesis
- 3. high levels of salt
- 4. only 3% of water in the world
- 5. rivers keep coming
- 7. fresh meets salty
- 10. shallow with sunlight
- 12. one direction
- 13. vary in size