environment

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Across
  1. 3. animals, birds, insects, etc. living naturally in the wild
  2. 5. gas a gas in the atmosphere that stops heat from escaping into space
Down
  1. 1. deadly or poisonous (of waste, chemicals, pollutants, etc.)
  2. 2. a chemical that's sprayed on crops to stop insects from destroying them
  3. 4. to make something new from materials that have been used before