Homework about environment

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Across
  1. 2. To make some noise about a questionable topic
  2. 4. The thing that agriculture produces
  3. 5. types of living being
  4. 6. The opposite of honorable
  5. 8. The process that we do to the fossil fuels, it means that we are going to run out of it
  6. 10. To befriend something or someone (noun)
  7. 11. It can break easily
  8. 13. Not talkative
  9. 14. Always freezed ground
  10. 15. ...... the bush beacause (Petőfi Sándor)
  11. 16. It is not true
  12. 18. Death of species
Down
  1. 1. Heavy rain (maybe :D)
  2. 3. To be able to make child
  3. 4. Think before action
  4. 5. Some offal for exaple on the bottom of the sea
  5. 7. To act first
  6. 9. Falls apart
  7. 12. Something uncommon attribution which is (usually) negative
  8. 17. It happens