Environment

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Across
  1. 2. 80% of marine litter is made up of this
  2. 5. behavioral change starts with this
  3. 6. the envelope of gases surrounding the earth or another planet
  4. 8. an organization that fights for the protection of the environment
  5. 11. a person who is concerned about protecting the environment
  6. 12. the envelope of gases surrounding the earth or another planet.
Down
  1. 1. things such as minerals, forests, coal, etc. which exist in a place and can be used by people
  2. 3. Results in melting of polar icecaps, flooding, desertification of farmlands
  3. 4. the trapping of sunlight which warms the earth
  4. 7. type of activities modern civilization depends on that raises carbon dioxide level
  5. 9. the abiity of a object or substance to decay naturally and in a way that is not harmful to the environment
  6. 10. Hydrocarbon gas produced by livestock and decomposing landfill