environment

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Across
  1. 4. the rising of temperature on the planet is called global ...
  2. 5. we all need it to run our appliances
  3. 6. economize energy
  4. 8. the thin layer of gases around the earth
Down
  1. 1. what you find in your bins
  2. 2. a phone you can take everywhere with you
  3. 3. when you put someone or something in danger
  4. 7. is the combination of smoke and fog
  5. 9. a place where you produce electricity with nuclear technology