Human Impact On The Environment

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Across
  1. 5. to use something more than once
  2. 6. maintaining an ecological balance by avoiding depletion of natural resources
  3. 8. a change of climate patterns, caused by the human race
  4. 10. produced by the internal heat of earth
  5. 11. all the water bodies on earth surface sometimes including clouds
  6. 13. a viscous liquid derived from petroleum, heavily used as a fuel or lubricant
  7. 14. a combustible black or dark brown rock, found mainly in underground deposits and especially used as fuel
  8. 16. producing electricity
  9. 17. Effect the trapping of the sun's warmth in a planet's lower atmosphere
  10. 18. the regions of the surface, atmosphere and hydrosphere of the earth
  11. 19. when something harmful or dangerous is added to an environment usually trash
  12. 20. a solid that is naturally occurring and inorganic
Down
  1. 1. power obtained by harnessing the energy of the sun's rays
  2. 2. make smaller or less in the total amount
  3. 3. a colorless and odorless flammable gas that is the main constituent of natural gas
  4. 4. resources that exist without the action of humankind
  5. 7. the rigid outer part of the earth consisting of the crust and upper mantle
  6. 9. convert trash into reusable materials
  7. 12. a natural resource or source of energy that isn't depleted when used
  8. 15. the gases surrounding the earth or another planet