4 2020 Schubert

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Across
  1. 2. natural fuels, such as coal and petroleum, that formed from the remains of living organisms and are burned by humans for energy
  2. 9. a major producer of greenhouse gases through deforestation for farmland, fossil fuels burned in food production, and methane produced by livestock
  3. 11. the layer of the atmosphere that contains the ozone layer
  4. 13. when a planet's atmosphere contains enough greenhouse gases to block thermal radiation from the planet,preventing the planet from cooling and leading to the evaporation of any water on the planet
  5. 18. a layer of ozone gas within the stratosphere that protects the Earth from the Sun's harmful UV rays
  6. 20. the layer of the atmosphere with the highest air pressure and air density
  7. 21. a greenhouse gas that is produced by humans during the burning of fossil fuels and absorbed by plants as part of photosynthesis
  8. 23. the coldest layer of the atmosphere
  9. 25. a powerful greenhouse gas produced by soil cultivation practices, such as the use of fertilizer, and fossil fuel combustion
Down
  1. 1. synthetic greenhouse gases, including chlorofluorocarbons (CFCs) and hydrofluorocarbons (HFCs), that are not produced naturally and are now largely regulated because of the destruction they cause to the ozone layer
  2. 3. a gas that is released into the atmosphere as a byproduct of photosynthesis
  3. 4. a gradual increase in the overall temperature of Earth's atmosphere, largely caused by human activity in the last century
  4. 5. the most abundant greenhouse gas in Earth's atmosphere
  5. 6. the most abundant gas in Earth's atmosphere
  6. 7. the general day-to-day conditions of the atmosphere in a particular area
  7. 8. a greenhouse gas that is less abundant in the atmosphere than carbon dioxide, but more effective at absorbing heat
  8. 10. the average temperatures, precipitation, etc. of an area or region over time
  9. 12. the temperature at which the air would be completely saturated (100% humidity)
  10. 14. a large body of air with uniform temperature and moisture content throughout
  11. 15. the process in which greenhouse gases in the Earth's atmosphere trap heat, warming the planet and enabling life to exist
  12. 16. the area over which an air mass formed/originated
  13. 17. the layer of the atmosphere with the lowest air pressure and air density
  14. 19. the third most abundant gas in Earth's atmosphere
  15. 22. the clearing of forests by humans to create space for agriculture and industry
  16. 24. a measure of the amount of water vapor in the air