Question

Relative contribution of various green house gases to total global warming is given in the diagram. Identify the green house gases.

• A. a-$C{O}_2$, b-$C{H}_4$, c-CFCs, d-$N_{2}O$
• B. a-$C{O}_2$, b-CFCs, c-$C{H}_4$, d-$N_{2}O$
• C. a-CFCs, b-$C{O}_2$, c-$C{H}_4$, d-$N_{2}O$
• D. a-CFCs, b-$C{H}_4$, c-$C{O}_2$, d-$N_{2}O$

Answer 1

The correct option is A a-$C{O}_2$, b-$C{H}_4$, c-CFCs, d-$N_{2}O$

CO2 generates a little over 55% of the human-induced greenhouse effect. There are of course natural CO2 emissions (respiration of animals, plants and humanity, decaying of biomass, natural forest fires. Methane generates a little over 15% of the human-induced greenhouse effect. halocarbons generate a little over 10% of the human-induced greenhouse effect. Nitrous oxide (N2O) generates roughly 5% of the human-induced greenhouse effect.

So the correct answer is 'a-$C{O}_2$, b-$C{H}_4$, c-$CFCs$, d-$N_{2}O$'.