Across
- 4. Flat land near a river prone to flooding
- 6. A low area of land between hills or mountains
- 9. A large natural stream of water
- 10. A very large expanse of sea
- 12. The height of a point above sea level
- 13. A large elevation of the earth’s surface rising from the surrounding level
Down
- 1. The process of eroding or being eroded by wind, water, or other natural agents.
- 2. The arrangement of the natural and artificial physical features of an area.
- 3. A body of water that is surrounded by land
- 5. The process of wearing or being worn by long exposure to the atmosphere
- 7. A low-lying area, often with water drainage
- 8. A naturally raised area of land
- 11. The steepness or incline of the land