The most significant ‘variable gases’ in the atmosphere are
oxygen and carbon dioxide
carbon dioxide and nitrogen
water vapour and carbon dioxide
water vapour and oxygen
Answer is Right!
Answer is Wrong!
This question was previously asked in
UPSC Geoscientist – 2022
– Nitrogen (N2) and oxygen (O2) are the most abundant gases but are considered permanent or fixed gases because their global concentrations are relatively constant (around 78% N2 and 21% O2).
– Variable gases like water vapour, carbon dioxide, methane, and ozone exist in much smaller concentrations but play crucial roles in atmospheric processes, particularly climate and weather.