Ch. 4 Earth's Resources Vocab

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Across
  1. 5. careful use of resources
  2. 8. could meet 5-10% of U.S. energy needs
  3. 9. forms from remains of plants & animals.
  4. 10. resource that can be replenished in months, years, or decades
  5. 12. liquid that forms from remains of plants & animals.
  6. 13. forms when heat/pressure transform plant material
  7. 16. energy that uses water to drive turbines
  8. 18. hydrocarbon used as an energy source
  9. 19. deposit formed when minerals settle quickly from moving water.
  10. 20. collecting items for reuse
Down
  1. 1. energy formed by fission
  2. 2. source of pollution from a known location
  3. 3. form thick tar called bitumen.
  4. 4. Earth's most abundant energy resource
  5. 6. point pollution with no specific point of origin
  6. 7. takes millions of years to form & accumulate
  7. 11. best known placer deposit
  8. 14. rock containing kerogen.
  9. 15. uses underground steam & hot water
  10. 17. uses ocean tides to create power