Deliberate upon the recent technological developments in energy sector giving appropriate examples.
Solar Energy
The energy we get from the fossil fuels like coal, is in reality sun’s energy, trapped in them millions of years ago plants make their food and grow because they use solar energy for photosynthesis. Millions of years ago, huge forests got buried in the earth’s crust and under great pressure and temperature, they were converted into coal or oil. Hence coal and oil are called fossil fuels. Solar energy is the great source for production of vegetation which serves as food and fuel for us.
Wind Energy
Like solar energy, wind flow can also be harnesses to obtain mechanical energy for fetching water from the wells or from rivers. Once the windmill is turning due to the force of the wind, it may as well run a generator to get electrical energy. In the coastal and hilly regions, where wind blows at high speed, windmill can be used for the supply of electricity to a small town. Windmills have been used since long in many countries, but in India they have been only recently introduced.
Wave and Tidal Energy
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