Across
- 1. cycle of oxygen
- 7. the falling liquid water from above as snow, rain, sleet and hail.
- 9. Respiration the removal of oxygen from the environment, the production carbon dioxide as a byproduct.
- 10. the process of water transitioning back to a liquid in the atmosphere.
Down
- 2. cycle of carbon
- 3. the passing of materials and energy from producers through consumers
- 4. Cycle continuous movement of water from earth to the atmosphere and back to earth
- 5. layers of energy pyramid
- 6. the formation of water vapor and process of water uptake into atmosphere
- 8. the removal of carbon dioxide to make sugars and produce oxygen from energy from the sun.