Across
- 5. Destruction of forests to clear land for other uses
- 6. The process in which plants incorporate carbon into living things
- 7. What we breathe out
- 8. Burning fossil fuels release ___________
- 9. The process in which the sun takes up water
- 11. It is an important element in protein
- 15. A continuous circulation of water Earth
- 16. Periods between glaciations
- 18. All living things on earth
- 19. Formed from the breakdown of organic matter
- 20. Fuels that contain the carbon of plants and animals that were preserved millions of years ago
- 21. Oceans, seas, lakes, ponds, rivers are all part of Earth's ______________
- 23. Naturally replenished
- 26. layers of rocks/soil that don't reach above freezing point, have a temperature known as ______________
Down
- 1. The general long term average weather
- 2. Causes drought in Australia and Indonesia
- 3. The warming of Earth caused by greenhouse gases
- 4. Form of light we can feel as heat
- 7. The process in which water vapor is turned into rain
- 10. Interaction between all living things and the physical environment
- 12. New renewable type of fuel
- 13. The layer of gases on Earth
- 14. The process in which carbon is recycled to enable life on earth
- 16. Masses of glacial land ice are known as ___________
- 17. Earth's __________ is made up of the crust and upper mantle
- 22. Radios, X-rays, Televisions and microwaves all have sources of ___________
- 24. The conditions in the atmosphere
- 25. type of radiation that reflects back into space as heat