B2 2020 Kalra

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Across
  1. 2. banned chemical that has 11,000x the heat capacity of CO2
  2. 6. most abundant gas in the atmosphere
  3. 8. in the troposphere, the temp. (decreases/increases) with altitude
  4. 9. layer containing ozone layer
  5. 11. the biggest cause of the greenhouse effect is what?
  6. 12. outermost layer of the atmosphere
  7. 13. chemical formula is CH4
  8. 15. a (population increase/population decrease/population staying constant) has resulted in more fossil fuels and dangerous gases being released
  9. 17. heat from Sun gets trapped in Earth's atmosphere and heats up the planet
  10. 19. hole opened in the ozone layer above which continent?
  11. 21. without the atmosphere, Earth would be very _ _ _ _.
  12. 23. removal of trees
  13. 24. protects us from UV radiation
Down
  1. 1. layer where Northern Lights take place
  2. 3. result of the greenhouse effect
  3. 4. layer with weather & clouds
  4. 5. layer where meteors burn up
  5. 7. the atmosphere is never ends, so it is ____.
  6. 10. burning of these results in dangerous chemicals being released into the atmosphere
  7. 14. troposphere is the (lightest/densest) layer
  8. 16. the (jet stream/weather) causes turbulence in the stratosphere
  9. 18. the 3rd most abundant gas in the atmosphere is (argon/helium)
  10. 20. released through burning of fossil fuels
  11. 22. 2nd most abundant gas in atmosphere