B3 2020 Tselentis

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Across
  1. 2. a colorless, odorless flammable gas
  2. 5. the emission of energy
  3. 6. life-supporting component of the air
  4. 7. The rising temperature of climate
  5. 9. trapping of the sun's warmth
  6. 10. absorbs most ultraviolet radiation
  7. 12. the star of our solar system
  8. 15. element of the noble gas group
  9. 16. radiation of the sun
  10. 18. a colorless, odorless gas made by carbon
  11. 20. a colorless gas with a sweetish odor
  12. 21. harmful effects on our environment
  13. 22. 2nd lowest atmospheric layer
  14. 23. the gases surrounding the earth
Down
  1. 1. fuller form of CFC
  2. 3. lowest atmospheric layer
  3. 4. most abundant gas in atmosphere
  4. 8. The most abundant greenhouse gas
  5. 11. form of electromagnetic radiation
  6. 13. gas that contributes with the GE
  7. 14. gases other than nitrogen on earth
  8. 17. between stratosphere and thermosphere
  9. 19. waves longer than visible light