Which of the following gases contributes $14\%$ to the greenhouse effect?

Global climate is threatened by an increase in the concentration of

Consider the following statements and select the correct set with respect to global warming:
$(a)$ $El$ $Nino$ effect
$(b)$ Cooling of stratosphere and earth surface
$(c)$ Shifting of climatic zones
$(d)$ Snow blindness
$(e)$ Impairment of hearing
$(f)$ Excessive deposition of ice at poles
$(g)$ Rise in sea level
$(h)$ Increase in eutrophication

Which of the following countries is responsible for releasing the largest amount of greenhouse gases?

The increase in temperature due to the trapping of energy by ozone,$CO_2$,and water vapour is known as:

Excess atmospheric $CO_2$ increases the greenhouse effect because it: