The environment

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Across
  1. 1. an overflow of a large amount of water
  2. 2. the production and discharge of gas or radiation
  3. 4. a synonym for clear-cutting
  4. 7. a gas in the atmosphere that stops heat from escaping into space
  5. 9. the act of dropping rubbish in public
  6. 11. Ozonschicht, couche d’ozone
  7. 13. to share a car instead of driving one alone
  8. 14. a prolonged period of abnormally low rainfall
  9. 15. to put waste into the wrong place (e.g.
  10. 16. contaminate with harmful or poisonous substances
Down
  1. 1. the order in which organisms in an ecosystem eat each other
  2. 3. a large white arctic animal
  3. 5. a film or layer of oil floating on water
  4. 6. the amount of CO2 that an indivudual produces
  5. 8. no longer existing or lost forever (animal, bird, plant species)
  6. 10. the place in which a species normally lives
  7. 12. the complex system of relationships between living things and their environment