Across
- 2. The type of smog created when bad ozone mixes with sunlight
- 4. O3
- 5. The type of ozone in the stratosphere
- 6. CH4
- 9. The ______ greenhouse effect cause by human activity
- 10. Human activity that can result in global warming
- 11. The type of ozone in the troposphere
- 12. The lowest layer of the atmosphere
Down
- 1. Levels of reflectivity
- 3. The type of radiation released from the earth
- 7. H2O
- 8. Incoming solar radiation