Saving energy

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Across
  1. 5. poisonous
  2. 6. relating to the environment
  3. 7. using methods which do not harm the environment
  4. 8. treat sth so that it can be used again
  5. 9. carbon ...-shows how much CO2 is emitted from your personal energy use
  6. 10. concerned with or supporting the protection of environment
Down
  1. 1. the act of using energy ,food, or materials
  2. 2. an area of land where large amounts of rubbish are buried
  3. 3. avoid wasting sth
  4. 4. made to be thrown away after use