Natural Gas Wells

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Across
  1. 6. Natural gas wells can cause
  2. 7. Forces natural gas from the ground
  3. 8. Dioxide Emits what into the atmosphere
  4. 9. Gas Most potent greenhouse gas
  5. 10. Fracking is linked to what
  6. 11. What is often contaminated during fracking
  7. 12. Natural gas burns cleaner than
Down
  1. 1. Well Dug What happened in the year 1821 for the
  2. 2. Natural gas wells employ 1.2
  3. 3. York Where was the first well dug
  4. 4. What kind of resource is natural gas
  5. 5. Largest gas wells are located in
  6. 11. There is limited