crosssword puzzle

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Across
  1. 5. is the wise use of natural resources
  2. 6. what is a resource that forms at a rate that's much slower and is consumed
  3. 9. the careful and responsible management
  4. 11. what is a material that is used by humans such as air soil minirals plants and animals
Down
  1. 1. contamination is the atmosphere
  2. 2. what is water that is able to be drank
  3. 3. it comes from one specific site
  4. 4. the removal of trees and other vegetation from an area
  5. 7. whats a natural resource that humans use to generate energy
  6. 8. what is waste or other materials that are added to the water
  7. 10. a tiny particule solid that is suspended in air or water
  8. 12. is a body of water that usually forms behind a dam