Environment

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Across
  1. 2. A material which is the cause of pollution
  2. 5. when trees in a land are cleared
  3. 6. land with lot of nature
  4. 7. organism that give out oxygen
  5. 8. When a barren land starts growing trees
Down
  1. 1. Organisms who die because of pollution
  2. 2. The process of plants making food
  3. 3. A method to make objects decay and mix with soil
  4. 4. Method to recycle organic material