Environment Puzzle

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Across
  1. 3. Air pollution consisting of smoke and fog
  2. 6. The mass of air surrounding the Earth
  3. 7. warming The gradual increase in temperature of the Earth’s surface caused by human activities
  4. 8. The pattern of weather in a region over a period of time
  5. 11. bin A wheelie bin used to collect compost before pick up
  6. 12. Any living thing
Down
  1. 1. A rich soil-like material produced from decayed plants and other organic matter, such as food
  2. 2. The reduction of trees in a wood or forest due to natural reasons or human activity
  3. 4. dioxide A colourless gas that is naturally produced from animals and people
  4. 5. To use an item more than once
  5. 9. Waste that is thrown away carelessly
  6. 10. Poisonous or harmful to the body