Across
- 4. Building on the land
- 5. Cannot identify a single source of pollution
- 6. Water that is drinkable
- 9. Nonrenewable sources of energy
- 11. Turning into a desert
- 12. Comes from the Earth
- 13. from one source, which we can identify
Down
- 1. Land Use of farming
- 2. we can get more of it if we use it.
- 3. An area covered by water for part of the year
- 4. Removing the trees
- 7. Percent of potable water
- 8. Process that carries away by wind and water
- 10. Getting something out of the ground