1What is energy? What is a source of energy? Give examples.
2What is renewable energy? Write four examples.
3What is non-renewable energy? Why should it be used carefully?
4What is fossil fuel? Explain how it is formed.
5Write two advantages and two disadvantages of fossil energy.
6What is alternative energy? Which alternative energies suit Nepal, and why?
7What is an energy crisis? Write four measures for reducing it in the context of Nepal.
8Trace the energy in your body back to its original source.
9Why is hydroelectricity called environment friendly?
10LP gas and gobar gas are both gases used for cooking. Is either of them a fossil fuel? Explain.