keeping in mind their availability in nature , explain the need of using coal and petroleum judiciary.
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Answer:
Coal and petroleum are fossil fuels and a nonrenewable source of energy.They are said to be nonrenewable as they take thousands of years in renewing themselves. Since we have been using them for so many years they are near to exhaustion. So it is high time for us to use them judiciously and also begin using non conventional or renewable .sources of energy like tidal energy, solar energy
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★ NEED OF USING COAL ARE ––––»
Coal is readily combustion black sedimentary rock which is used for cooking food in rural areas , generating electricity , for :----- making "Chimneys" (brick factories) coal is also one of the largest source of carbon dioxide (Co2) emmision however but coal produces a lot of smoke and is a foul - smelling gas which also causes " Air pollution. "
★ NEED OF USING PETROLEUM ARE ––––»
Peteroleum is a dark coloured viscous foul smelling liquid also called as crude oil it's name is derived from latin word 'petra' (rock) and 'oleum' (oil) which is used for :----- lubricants transportation , heating and lightening , etc.