Across
- 4. - A fertile spot in a desert where water is found, often surrounded by vegetation.
- 5. - The science that deals with the study of the Earth's structure, materials, and processes.
- 7. - A group or chain of islands.
- 9. - A piece of land almost surrounded by water or projecting out into a body of water.
- 10. - A large artificial or natural lake used for storing and supplying water.
Down
- 1. - A natural flowing watercourse, usually into the sea or a lake.
- 2. - A landform where a river divides into smaller rivers or streams before reaching the ocean.
- 3. - The wide part of a river where it nears the sea, containing a mix of fresh and saltwater.
- 6. - A river or stream that flows into a larger river.
- 8. - A flat, elevated landform with steep sides.