Across
- 5. the process of clearing trees from land
- 7. activities things people do that affect the Earth system
- 9. a molecule made of carbon and oxygen atoms
- 10. information collected in an investigation
- 12. the mixture of gases surrounding a planet
Down
- 1. changes in climate over a long period natural events
- 2. general weather patterns over a long period of
- 3. variation in a set of data
- 4. the process of burning fuels, which produces carbon dioxide
- 6. the sudden pushing out of something, such as lava from a volcano
- 8. when something becomes different over time
- 11. the ability to make things move or change
- 12. to take in