Geothermal energy consists of wind and hydropower energy stored in soil, underground rocks, and fluids in the earth's mantle wave and tide power energy from biomass

Geothermal energy consists of energy stored in soil, underground rocks, and fluids in the Earth's mantle.

Explanation:

Geothermal energy is energy stored in the Earth's mantle. Geothermal energy originates from the energy formed during the formation of the earth and from the decay of radioactive elements in the earth's crust. In 2007, global geothermal electricity generation in the world was estimated to be 10 GW, corresponding to 0.3% of total electricity generation.  

Geothermal energy is cost-effective, reliable and environmentally friendly, but has previously been geographically limited to areas close to the borders between the continental plates. However, technological developments in recent years have greatly expanded the scope and size of these energy sources.