Across
- 2. reef a reef composed mainly of coral.
- 4. any part of the earth's surface not covered by a body of water.
- 6. dense forest found in tropical areas of heavy rainfall.
- 9. an area of wet, spongy land.
- 10. an elongated depression between uplands, hills, or mountains.
- 12. a series of mountains.
Down
- 1. an extended mass of ice formed from snow falling and gathering over the years.
- 2. the land next to the sea.
- 3. a portion of an ocean or sea partly enclosed by land.
- 5. a sand hill ridge formed by the wind, usually in deserts.
- 6. a natural stream of water flowing in a definite course.
- 7. the salt waters that cover the greater part of the earth's surface.
- 8. a deep valley with steep sides.
- 11. body of fresh or salt water surrounded by land.