Human Impacts on the Environment

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Across
  1. 4. The layer of gases surrounding Earth
  2. 5. Trees __________ carbon dioxide from the atmosphere, reducing warming effects
  3. 6. Structures produced by marine organisms that are negatively impacted by acidification
  4. 9. A decrease in ocean pH caused by carbon dioxide dissolving in water
  5. 11. The variety of organisms living in an area, reduced by deforestation
  6. 12. Needed for human activities, can be collected from renewable or nonrenewable resources
  7. 13. Nonrenewable energy sources like coal, oil, and natural gas
  8. 14. Type of energy that is trapped by greenhouse gases in the atmosphere
  9. 17. A greenhouse gas released by livestock and landfills
  10. 18. There is __________ methane than carbon dioxide in the atmosphere, but methane can trap more heat
  11. 20. Fossil fuel whose mining is associated with methane emissions
Down
  1. 1. A gas released when fossil fuels are burned that traps heat
  2. 2. The large-scale removal of trees from forests
  3. 3. How carbon dioxide gets from the atmosphere into the ocean
  4. 7. A community of living organisms interacting with their environment
  5. 8. __________ gases in the atmosphere trap heat and contribute to warming
  6. 10. Farm animals that produce a large amount of methane gas
  7. 15. Areas where plants and animals live, disrupted by deforestation
  8. 16. Long-term changes in Earth’s average temperature and weather patterns
  9. 19. Places where waste is buried and methane is released