Carbon Cycle
Across
- 1. crystalline form of pure carbon
- 3. The steady movement of particles
- 5. the action of breathing
- 7. non-metal two main forms diamond and graphite
- 9. the sphere occupied by living organisms.
Down
- 2. the state or process of rotting or decaying
- 4. on fire
- 5. the emission of energy as electromagnetic waves
- 6. envelop of gases surrounding the earth
- 8. the action of one object hitting another