Increased concentration of which of the following may cause maximum global warming?

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Bihar CET B.Ed 2022 Official Paper
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  1. Oxygen
  2. Nitrogen
  3. Carbon dioxide
  4. Water Vapour

Answer (Detailed Solution Below)

Option 3 : Carbon dioxide
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The correct answer is Carbon dioxide.Key Points

  • The production and combustion of fossil fuels (such as coal, oil, and natural gas), wildfires, and natural processes like volcanic eruptions all produce carbon dioxide.
  • CO2 is a significant heat-trapping gas or greenhouse gas.
  • Climate change is brought on by the planet's atmosphere becoming too heated from carbon dioxide.
  • In fewer than 200 years, human activity has increased the atmosphere's carbon dioxide content by 50%.
  • The atmosphere's increased concentration of greenhouse gases, including carbon dioxide, is what leads to global warming.

Additional Information

  • ​When carbon dioxide (CO2) and other air pollutants build up in the atmosphere, they absorb sunlight and solar rays that have already reflected off the surface of the earth.
  • Ordinarily, this radiation would escape into space, but because these pollutants may linger in the atmosphere for many years or even decades, they trap the heat and make the planet hotter.
  • The greenhouse effect is the result of these heat-trapping pollutants, notably carbon dioxide, methane, nitrous oxide, water vapour, and synthetic fluorinated gases, which are referred to as greenhouse gases.
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