The figure given below shows the relative contribution of four greenhouse gases to global warming.
(i) Identify the gases A and C.
(ii) Why are these four gases called greenhouse gases?
(i) A - Carbon dioxide (C02)
C - Chlorofluorocarbons (CFCs)
(ii) These four gases (i.e. C02, CH4, N20 and CFCs) are called greenhouse gases, as they absorb infrared radiations emitted by the earth’s surface.