Across
- 2. water that is suitable to drink
- 6. the careful and responsible management of resources
- 9. an increase in the amount of nutrients in the water
- 10. when water gets to hot
- 11. when forests become deserts
- 12. when waste is put into water
Down
- 1. the cutting down of forests
- 3. how clean the air is
- 4. a body of water that forms behind a dam
- 5. precipitation that contains rain
- 7. when gases in the atmosphere mix to create thermal energy
- 8. the urbanizing of places