What is geothermal energy ?

solution:
The heat energy inside the earth's crust is known as geothermal energy. The geological changes in some regions push the hot magma upwards which gets collected at some depth below the surface of earth. Such places are called hot spots. These hot spots serve as a source of heat energy (or geothermal energy). The geothermal energy is utilised to convert water into steam which rotates a steam turbine.