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What is called hot spots ? How is geothe...

What is called hot spots ? How is geothermal energy exploited from it ? In which countries such power plants are in operational ?

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Due to geological changes, molten rocks formed in the deeper hot regions on earth.s crust are pushed upward and trapped in certain regions called hot spots.
When underground water comes in contact with the hot spot, steam is generated. The steam in rocks is routed through a pipe to a turbine and used to generate electricity. The cost of production would not be much, but there are very few commercially viable sites where geothermal energy can be exploited.
In New Zealand and United States of America, power plants based on geothermal energy are operational.
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