B1 2020 Hill

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Across
  1. 3. the atmospheric layer where the weather occurs
  2. 4. the ozone layer is found in this atmospheric layer
  3. 8. the total of carbon gases produced by human activities or non human activities
  4. 10. the greenhouse gases are trapped in this layer
  5. 12. water evaporating into the atmosphere and is a greenhouse gas
  6. 14. greenhouse gases cause this to increase drastically
  7. 15. this human activity causes methane to emit into the atmosphere
  8. 17. burning fossil fuels causes this greenhouse gas to emit into the atmosphere
  9. 18. this layer protects Earth's surface from harmful UV rays
  10. 20. the coldest atmospheric layer
  11. 21. if greenhouse gases continue this could rise and flood homes and increase the damage of storms
  12. 22. the abbreviation is GHG
  13. 24. greenhouse gases are a major factor in the worldwide problem
  14. 25. the most potent greenhouse gas
Down
  1. 1. 78 percent of the atmospheric gases
  2. 2. a natural process that warms the Earth's surface keeping it a perfect temperature
  3. 5. a greenhouse gas that attacks the ozone layer
  4. 6. by trapping heat from the sun greenhouse gases have keeps this livable for humans
  5. 7. is chemically known as N2O and is a greenhouse gas
  6. 9. the process of humans cutting down trees leading to an increase of carbon dioxide in the atmosphere
  7. 11. a type of radiation released from the sun
  8. 13. the movement of carbon from the atmosphere through living things and back into the atmosphere
  9. 16. the atmospheric layer right before outer space
  10. 19. one of the big causes of greenhouse gases increasing
  11. 23. 21 percent of the atmospheric gases