NON RENEWABLE RESOURCES

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Across
  1. 4. blackgold is the term applied to
  2. 6. tar sand is used to produce
  3. 9. tar sand impacts ____ supplies
  4. 11. which gas makes 90% of natural gas
  5. 12. the coal used in power generation
  6. 15. first stage of refining
  7. 16. Natural gas is a mixture of gases which are rich in__
  8. 17. organization of the petroleum ___ countries
  9. 18. which gas is filled in cylinder?
Down
  1. 1. largest coal field in india
  2. 2. unrefined petroleum is called as
  3. 3. where is the largest natural gas field in america?
  4. 5. synthetic fibre made from non renewable fossil fuels
  5. 7. common extraction method of bitumen and tar sand
  6. 8. tar sands are an increasingly common but __ and dirty source of soil
  7. 10. when surface mining is used, the waste water ends up in ___ storage ponds
  8. 13. GAS operating gas fired fireplaces is an example of___
  9. 14. bituminous, subbituminous, and lignite