Across
- 2. ice becomes a gas without passing through the liquid state
- 5. Earth's surface and interior
- 9. refills the groundwater supply
- 11. the largest reservoir of water and carbon on Earth
- 14. oxygen, water vapor, and nitrogen are found in it
- 15. burning fossil fuels or wood puts carbon back in the atmosphere
- 16. liquid to gas
- 17. plants release water vapor
Down
- 1. icebergs and glaciers
- 3. any form of water that falls from the sky
- 4. returns carbon to the geosphere when an organism dies
- 6. all of the living things in a habitat
- 7. producers convert light energy to chemical energy
- 8. forms clouds and dew
- 10. the most abundant gas in the atmosphere
- 12. oceans and lakes
- 13. cellular __________ occurs in the mitochondria to release stored energy