General Studies I
Consider the following which can be found in the ambient atmosphere:
1. Soot 2. Sulphur hexafluoride
3. Water vapour
Which of the above contribute to the warming up of the atmosphere?
|A||1 and 2 only|
|C||2 and 3 only|
|D||1, 2 and 3|
SF6 is the most potent greenhouse gas that has been evaluated, with a global warming potential of 22,800 times that of CO2 when compared over a 100-year period.
Greenhouse effect is caused by atmospheric trace gases such as carbon dioxide (CO2), ozone (O3), and water vapour (H2O). Infrared radiation from the earth is stored temporarily in the atmosphere. Of all these trace gases, water vapor represents the most important constituent. It contributes to the natural greenhouse warming process by approximately 60%.