Environmental Impacts

2. a scale that ranks levels of ozone and other air pollutants
3. all the members of a species living in a given area
6. the process of restoring land distributed by mining
7. the natural process that occurs when certain gases in the atmosphere absorb and reradiate thermal energy from the Sun
8. the development of land for houses and other buildings near a city
10. pollution from several widespread sources that cannot be traced back to a single location
13. rain or snow that has a lower pH than that of normal rainwater
14. the development of desert-like conditions due to human activities and/or climate change
15. an increase in Earth's average surface temperature

1. pollution from a single source that can be identified
4. the largest number of individuals of a given species that Earth's resources can support and maintain for a long period of time
5. planting trees to replace trees that have been cut or burned down
9. the mix of both solid and liquid particles in the air
11. the removal of large areas of forests for human purposes
12. caused when nitrogen and carbon compounds in the air react in sunlight