Across
- 5. dioxide A greenhouse gas released by respiration and combustion
- 6. sink A place where carbon is stored for long periods
- 8. The process where plants use sunlight to make food and absorb carbon dioxide
- 9. A greenhouse gas produced by animals and decomposition
- 11. cycle The movement of carbon between Earth’s systems
- 13. effect The trapping of heat in Earth’s atmosphere by gases
Down
- 1. The layer of gases surrounding Earth
- 2. The solid outer layer of Earth including land and rocks
- 3. The process where organisms release energy from food and produce carbon dioxide
- 4. The breakdown of dead organisms releasing nutrients and carbon
- 7. fuels Fuels like coal, oil and gas formed from ancient organisms
- 10. All the water found on Earth
- 11. The burning of fuels that releases carbon dioxide
- 12. All living organisms on Earth