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What is geothermal energy ?...

What is geothermal energy ?

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Due to changes taking place within earth, molten rocks formed in the deeper hot regions of earth are pushed upward in the regions called .hot spots.. Steam is generated when underground water comes in contact with hot spots. Steam trapped in rocks is routed through a pipe to the turbine and used to generate electricity. Though the cost is not so much but commercially suitable sites have to be located.
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(a) What is geothermal energy ? (b) What is the source of heat contained in geothermal energy ? (c ) Explain how, geothermal energy is used to generate electricity. (d) State two advantages of geothermal energy. (e) State two disadvantages of geothermal energy.

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Renewable energy is energy produced from sourece that do not deplete or can be replenished within a human's life time. The most common examples include wind, solar, geothermal, biomass, and hydroelectric power. This is in contrast to non-renewable sources such as fossil fuels. Most renewable energy is derived direcetly or indirectly from the sun. Sunlight can be captured directly using solar technologies. The sun's heat drives winds, whose energy is captured with turbines. Plants also rely on the sun to grow and their stored energy can be utilized for boienergy. Not all renewable energy sources rely on the sun. For example, geothermal energy utilizes the Earth's internal heat, tidal energy relies on the gravitational pull of the moon, and hydroelctric power relies on the flow of water. What is renewable energy ?

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MBD -HARYANA BOARD-IMPORTANT TERMS AND FACTS TO MEMORISE-Short Answer Type Questions
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