Compare and contrast fossil fuels and

solution:

(1) The reserves of fossil fuels are limited i.e., exhaustible and they have high cost. But, solar energy is available in abundance i.e., it is inexhaustible and that too, without any cost.

(2) Fossils fuels cause air pollution on burning whereas solar energy is pollution-free.

(3) Fossil fuels can provide energy at any required time whereas solar energy is not available every time. For example, on a cloudy day solar energy is not available.