Across
- 6. taking in or soaking up energy
- 9. A gas found in Earth's atmosphere produced by animals during respiration or during burning
- 11. all life on earth
- 14. layers of rock that give information about Earth's history
- 15. caused by the movement of Earth's plates
- 17. A reservoir that absorbs more carbon than it releases
- 18. slow moving mass of ice and snow
- 19. a curved path followed by a satellite
- 20. The whole mass of air surrounding Earth
- 21. activity of gas emissions or lava flows
Down
- 1. large scale movement of water in the oceans
- 2. plant life
- 3. a change in direction of a wave
- 4. The measurement of light or radiation that is reflected back from the surface of an object
- 5. long term change in temperature range and environmental variables
- 7. emission of energy as particles or waves
- 8. a change in one part of a system affects another part of the system
- 10. a gas that traps heat in the atmosphere
- 12. The tons of carbon dioxide and other greenhouse gases a person produces using fossil fuels
- 13. transfer of energy through currents in fluids
- 16. third planet from the sun
- 17. average weather conditions for a region year after year