Contribution of CO2 and CH4 in the greenhouse effect is respectively.
CO2 60%, CH2 20%
CO2 20%, CH4 20%
CO2 80% CH4 20%
CO2 70%, CH4 30%
Contribution of various greenhouse gases to the global warming;
CO2 - 60%
CH4 - 20%
CFCs - 14%
N2O - 6%