Natural Resources

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Across
  1. 3. how to collect coal
  2. 4. energy from flowing water
  3. 5. energy from the sun
  4. 7. coal, oil, and natural gasses
  5. 8. how to collect natural gasses
  6. 9. are replaced either at the same rate or quicker than they are used
  7. 10. energy from the center of the earth
Down
  1. 1. are used quicker than they are replaced
  2. 2. energy that is collected from matter that is alive or recently alive
  3. 6. energy from wind