Across
- 4. The release of a substance into the atmosphere, mainly produced by cars
- 9. _____ _____ is another name for global warming
- 11. _____ energy: direct energy from the sun
- 12. Process that occurs in living green plants where carbon dioxide is converted to oxygen
- 13. The average weather for a region over a long time period
- 16. The process of cutting down trees
- 18. Mixture of gases surrounding the Earth
- 19. A type of bear that will become extinct if the current changes to the climate stay the same
- 20. Planet _____ is heating up because of global warming
Down
- 1. You can _____ a plastic bottle to lessen the effect on the environment
- 2. A change in the quality of the environment that can adversely affect the health of humans or other living organisms
- 3. The greenhouse gas that comes from rotting rice and cows stomachs
- 5. The _____ Layer has holes in it due to global warming
- 6. The heat from an __________ does not contribute to climate change
- 7. _____ dioxide is what we exhale
- 8. _______ fuels
- 10. _____ gases can cause global warming
- 14. Climate change is a _____ term change
- 15. When the carbon dioxide increases, the ________________ increases
- 17. ______ warming