Why is energy needed? How can we conserve energy resources? Explain.
Energy is required for all activities. It is needed to cook, to provide light and heat, to propel vehicles and to drive machinery in industries.
Energy is the basic requirement in economic development. Every sector of economy needs to greater input of energy.
Energy resources can be conserved in different ways.
- By using public transport systems instead of individual vehicles.
- By switching off electricity when not in use.
- By using power saving devices.
- By using non-conventional sources of energy.