Across
- 1. flat formation with steep sides
- 4. a wetland with ground made up of peat
- 6. river that feeds a larger one
- 10. land with little elevation change
- 11. spongy freshwater wetland
- 12. land encased by water on 3 sides
- 14. where river empties its contents
- 16. ring of coral that forms an island
- 17. finger-like inlet with steep sides
- 19. deep valley with steep sides
Down
- 2. where a river meets the ocean
- 3. slow-moving river of ice
- 4. a partially enclosed body of water
- 5. a group of islands in an ocean
- 7. the beginning of a river
- 8. very dry area with scarce rainfall
- 9. connects two bodies of water
- 13. tropical grassland with some trees
- 15. part of a sea and larger than a bay
- 18. undersea growth of coral