Across
- 2. Water that is not salty and is safe for drinking.
- 4. The act of protecting and preserving natural resources.
- 8. The process of water soaking into the ground.
- 9. A long period of dry weather with little to no rainfall.
- 11. A large mass of ice that moves slowly over land.
- 12. The movement of water through soil and rock layers.
- 13. A structure used to transport water over long distances.
- 14. The area of land that drains into a specific water body.
- 15. A landform at the mouth of a river, often triangular.
Down
- 1. The study of water and its movement on Earth.
- 3. An area where water covers the soil for most of the year.
- 5. The process of removing salt from seawater.
- 6. The global sum of all ecosystems, including water systems.
- 7. The introduction of harmful substances into the environment.
- 10. Water stored beneath the Earth's surface.