Environment

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Across
  1. 3. warming Rise in the Earth’s temperature
  2. 4. Using waste materials again after processing
  3. 6. dioxide  Gas released by vehicles that causes global warming
  4. 7. Cutting down of trees
  5. 8. Natural disaster caused by heavy rainfall
Down
  1. 1. Harmful substances added to air, water, or land
  2. 2. Gases that trap heat in the atmosphere
  3. 5. Gas absorbed by trees