health of human being

Energy is the power underline all the activities of living and non living things. We have to make use of energy in all walks our ife. We can get energy in various forms. Sun is the main sources of energy. A part from the sun, fuels, hydroelectric power, nuclear power and bio-gas are the other sources of energy. The sun gives our enormous quantities of energy in the form of radiations rays of light and other form of energy. Green plants change the energy of sunlight into chemical energy through photosynthesis. In Oder to accomplish the everyday needs of the human beings, various other kinds of energy are needed. For example, energy obtaining from the fuel, fossil fuels etc. Besides the hydroelectric energy, the energy from the sun or solar energy is also very useful for producing electricity. The energy, for heating, or for driving heat engines, usually comes from a fuel. The fuels obtain from natural gas and coal is called fossil fuel. This is how, energy is very important factor for us in the exception of which the existence of human beings seems to be impossible and meaningless.