Natural resources

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Across
  1. 2. Energy sources which can be used over and over again without running out.
  2. 4. Anything that dirties the Earth.
  3. 5. An energy resource that does not produce carbon dioxide but it does produce radioactive waste.
  4. 6. A fuel, such as coal, oil, or natural gas, formed in the earth from plant and animal remains over millions of years.
  5. 8. A natural resource that is limited but abundant in nature.
  6. 11. The power generated by falling water.
  7. 12. Energy that comes from the sun.
Down
  1. 1. An energy from fossil fuel which is odorless and colorless in its natural state which is primarily made of methane.
  2. 3. Materials from the Earth that are used to support life and meet people's needs.
  3. 7. Energy that can be extracted from earth's internal heat.
  4. 9. A way to describe the use of power or the ability to do work
  5. 10. is a solid, black material that contains a large amount of carbon-based material used to produce energy.