Environment problems

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Across
  1. 2. Waste that will decompose naturally is….
  2. 9. Something in the air.
  3. 10. Something that can’t be undone.
  4. 12. harmful substances.
  5. 13. greenhouse gas.
  6. 14. Harmful gas, which is emitted by transport.
  7. 15. Enormous.
Down
  1. 1. It is believed that it causes the climate change.
  2. 3. Remedy that kills insects.
  3. 4. Institution that deals with the protection of the environment.
  4. 5. Exhaust fumes can cause this weather condition.
  5. 6. reuse from materials.
  6. 7. It shields the earths surface from solar radiation.
  7. 8. Place where you can dispose garbage.
  8. 11. Essential.