Across
- 7. these organisms eat dead organisms
- 9. is the process that takes unusable nitrogen and turns it into a useable form
- 10. these organisms make their own food
- 12. the process in which liquid changes into a gas
- 13. this element is an essential part of proteins
Down
- 1. the process in which organisms are broken down
- 2. water that falls from the clouds
- 3. the process in which plants make their own food
- 4. all matter does this through the environment
- 5. this element can enter the atmosphere when organisms die and decompose
- 6. these organisms eat plants and/ or animals
- 8. the process during which water vapor chanes into liquid water
- 11. this cycles from Earth to its atmosphere and back again. There are 3 main processes for this cycle.
- 14. this is the element in air that we breathe in
