Human Impact on the Environment

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Across
  1. 4. This is the act of preserving natural resources.
  2. 5. This is a natural, renewable energy resource produced by Earth's naturally occurring heat, steam, and hot water.
  3. 7. This means pertaining to land.
  4. 9. These provide a source of energy and come from the decay of organisms.
  5. 12. These are resources obtained from the Earth.
Down
  1. 1. These natural resources are limited.
  2. 2. This fossil fuel exists in the form of a gas.
  3. 3. These natural resources can be replenished.
  4. 6. water power
  5. 8. This means pertaining to water.
  6. 10. energy from the sun
  7. 11. This is the mass of dried living matter.