Question

What are greenhouse gases? $\left[2\text{marks}\right]$
Give 4 examples. $\left[2\text{marks}\right]$
Which greenhouse gas is the biggest contributor to global warming on the Earth? $\left[1\text{marks}\right]$

Answer 1

Gases which are good absorber of long wavelength infrared radiation are called greenhouse gases. $\left[2\text{marks}\right]$
Examples:
Carbondioxide, water vapour, methane, chlorofluorocarbons.
$\left[2\text{marks}\right]$
Carbondioxide is the biggest contributor to global warming on the Earth. $\left[1\text{mark}\right]$