set 5

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Across
  1. 2. based on untested ideas or techniques and not yet established or finalized.
  2. 4. a change in global or regional climate patterns
  3. 5. The water and human wastes that are washed down sinks, toilets, and showers
  4. 7. resources that cannot be replaced within a human life
  5. 9. an electric car that runs on energy from the sun
  6. 11. Fuel for cars made from plant oils.
  7. 12. Transportation service for the general public
Down
  1. 1. a car with a gasoline engine and an electric motor, each of which can propel it
  2. 3. A natural resource that can be replaced at the same rate at which the resource is consumed
  3. 6. A fuel that can be made from sugar cane
  4. 8. the contamination of air by harmful substances including gases and smoke
  5. 10. rain containing high amounts of chemical pollutants