Environment

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Across
  1. 5. – A large, slow-moving mass of ice.
  2. 7. – Harmful substances contaminating the environment.
  3. 8. – A community of living organisms and their environment.
Down
  1. 1. – Dangerous or harmful.
  2. 2. – A method of extracting oil or gas by cracking underground rock.
  3. 3. – A structure for growing plants; also refers to gases trapping heat in Earth's atmosphere.
  4. 4. – To process waste into reusable materials.
  5. 6. – The permanent disappearance of a species.