Across
- 1. waterleaves the earth through gas
- 3. respirartion takes oxygen from the atmopshere and
- 5. conversion when nitrogen gas is converted into nitrogen compounds
- 7. water vapor cools and becomes liquid again
- 9. dead organisms are decomposed by organisms such as bacteria
- 12. chain the passing of energy fro mproducers through consumers
- 13. pyramids illistrates how energy flows
- 14. removing carbon dioxide from the air and producing carbon dioxide
- 15. soil bacterias converted into nitrogen compounds
- 16. animal waste of dead bodies
Down
- 2. water returns to the ground
- 4. web all the interlated food chains that are possible in an ecosystem
- 6. plants absorb the nitrogen compounds from the soil to make proteins
- 8. continuous movement of water from the earth to the atmosphere
- 10. fuels fuels such as gasoline
- 11. levels levels in the pyramid