ENVIRONMENTAL ISSUES

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Across
  1. 4. to preserve something
  2. 5. when it does not rain for a long time
  3. 8. change the long-term alteration of Earth's climate
  4. 10. energy energy from a source that is never finished
  5. 13. when you cut all the trees in the forests
  6. 14. a material, a substance or a product eliminated by humans
Down
  1. 1. when it rains a lot and it creates inondations
  2. 2. out when you separate your waste
  3. 3. the presence of a harmful substance in our environment
  4. 6. effect the gases which increase our planet temperature
  5. 7. warming the increase of temperature on our planet
  6. 9. rain atmospheric pollution in the rain
  7. 11. the name of our planet
  8. 12. the attitude to protect our planet