Modern civilization cannot run without energy We cook food, light lamps, run cars, use pumps and do many other things. For these we need energy. For energy we depend on nature. Thus, we get wood, coal, oil, gas, petroleum, electricity etc. from nature. The fact is that the demand of energy is increasing day by day. But, it is not unlimited. Thus, this has become short in supply. Yet, we have to move on. Otherwise, our progress will stop. To tide over the crisis, solar energy is being used in India for different purposes. Bio-gas from cow dung is also widely used in the rural areas. Energy is vital. So, this should be used judiciously. Otherwise, human civilization will come to a halt one day.
