Why is energy required for all activities? -SST 10th

Why is energy required for all activities? -SST 10th
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(i) Energy is a basic requirement for economic development.  (ii) Every sector of the national economy needs input of energy  (iii) Consumption of energy in all forms has been steadily rising all over the country.  (iv) Rising prices of oil and gas and their potential shortage have raised uncertainties about the security of energy supply in future. (Any two) Energy can be generated from fuel minerals like coal, petroleum, natural gas, uranium and from electricity.
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