Natural gas

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Across
  1. 2. natural gas also called as
  2. 4. can be found
  3. 5. Natural gas can be burned
  4. 7. consisting primarily
  5. 9. natural gas is
  6. 10. Natural gas can be burned
Down
  1. 1. Natural gas can be burned
  2. 3. occurring mixture of gaseous
  3. 6. odorizers
  4. 8. smells like