Nonrenewable Cross Word Puzzle

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Across
  1. 2. Does by itself
  2. 5. Radioactive
  3. 7. Found underground
  4. 8. Black in found mining
  5. 9. Done with a machine or pickaxe.
Down
  1. 1. Fuels: Used to make energy
  2. 3. Slugy
  3. 4. Can be many shapes found underground
  4. 6. Take away.
  5. 10. Gas: Found naturally