Natural Resources Vocabulary

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Across
  1. 3. the perceptible natural movement of the air
  2. 4. organic matter used as a fuel
  3. 9. existing in finite quantity; not capable of being replenished
  4. 11. a black or brownish-black sedimentary rock formed from ancient plant matter
  5. 12. the sun's rays as a source of energy
  6. 13. a stock or supply that can be drawn on by a person in order to function effectively
  7. 14. relating to or denoting the generation of electricity using flowing water
  8. 16. discarded as worthless, defective, or of no use
  9. 17. convert into reusable material
  10. 18. flammable gas occurring naturally underground and used as fuel
Down
  1. 1. make smaller or less in amount, degree, or size
  2. 2. harnessing heat from within the Earth for energy
  3. 5. contaminate with harmful or poisonous substances
  4. 6. the action of using something again
  5. 7. a viscous liquid derived from petroleum, especially for use as a fuel
  6. 8. a source of energy that is not depleted by use
  7. 10. non-renewable energy sources that are formed from the remains of ancient plants and animals
  8. 15. the capacity to do work, in various forms like heat, light, motion, and electricity