Question

What are greenhouse gases? $\left[1\text{marks}\right]$
Give 4 examples. $\left[2\text{marks}\right]$

Answer 1

Gases which are good absorber of long wavelength infrared radiation are called greenhouse gases. Greenhouse gases help in trapping the Sun's energy in the atmosphere. $\left[1\text{marks}\right]$
Examples of greenhouse gases include carbondioxide, water vapour, methane, chlorofluorocarbons.
$\left[2\text{marks}\right]$