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HCS (Haryana)Prelims2022General Studies
Question
Select the correct option from the codes given below about greenhouse gases from the following: I. Methane II. Nitrogen III. Nitrous oxide IV. Water vapours Code:
Options
- A I, II and IV only
- B I and II only
- C I and III only
- D I, II and III only
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Correct Answer
A I, II and IV only
Model Answer
- A greenhouse gas is a gas that absorbs and emits radiant energy in the thermal infrared region, creating the greenhouse effect.
- It is sometimes abbreviated as GHG.
- Water vapour (H2O), carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), and ozone(O3) are the planet's main greenhouse gases.
- Without greenhouse gases, the average surface temperature of Earth would be closer to 18 °C (0 °F) than it is today, which is 15 °C (59 °F).
- Nitrogen (78%), Oxygen (21%), and Argon (0.9%) make up the majority of the atmosphere's non-greenhouse gases.
- Carbon dioxide is a greenhouse gas that is abundant in the atmosphere