Nonrenewable energy

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Across
  1. 2. chemical compounds that are derived from oil to make product
  2. 3. radioactive material left over from the production of energy
  3. 5. energy that holds these particles together in the nucleus
  4. 7. rock filled with mixture of hydrocarbons
  5. 8. small nuclei are forced together to form a heavier nucleus
  6. 10. the ability to do work
  7. 12. the practice of digging deep shafts for mineral
  8. 13. dark liquid fossil fuel made of hydrocarbons
  9. 14. the extraction of mineral by layers
Down
  1. 1. the splitting of an atom’s nucleus
  2. 4. can be replaced in a relatively short time
  3. 6. cannot be replaced
  4. 9. motion
  5. 11. the process in which a fuel burns