Fossil fuels are obtained from the remains of plants and animals, which get buried beneath the earth millions of years ago, changed into coal, petroleum and natural gas due to excessive heat and high Pressure inside the earth. These are energy sources which cannot be replaced easily when they get exhausted and are also called conventional sources of energy. They are used traditionally for many years and take millions of years to form.
(i) 'Necessity of judicious use of coal and petroleum'. Give a reason behind this statement.
(ii) As a citizen, what significant role you play in regard to conserve fossil fuels by using other alternate sources of energy.