(i) List any two criteria for selecting a good fuel.
(ii) Explain how does burning of fossil fuels cause air and soil pollution.

Explanation

(i) Criteria for selecting a good fuel :
(a) Would do a large amount of work per unit volume or mass.
(b) be easily accessible.
(c) be easy to store and transport.
(ii) Burning of fuels releases gases like `CO_(2), SO_(2), NO_(2),`. These causes air pollution. With rain, these pollutants fall as acid rain and cause soil pollution.