Environment

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Across
  1. 4. is also called CO2.
  2. 6. the surroundings we live in.
  3. 8. is something that puts you to the test, like running your first marathon.
  4. 9. is a state of being informed.
  5. 10. a type of solid fossil fuel.
Down
  1. 1. toxic gasses produced by cars, planes, factories.
  2. 2. a type of aeriform fossil fuel. Helium is a type of … .
  3. 3. a type of energy from the Sun.
  4. 5. is a dry season without rains.
  5. 7. a type of energy that can be regenerated.