Bcoz geothermal means the heat energy extracted from reservoirs in the earth's interior by the molten lava (produce heat energy)

Geothermal energy is:

Geothermal energy is the heat energy that is generated and stored in the Earth's interior. It is a renewable source of energy that can be harnessed for various purposes, including generating electricity and heating buildings.

Explanation:

1. Heat energy in the interior of the Earth:
Geothermal energy primarily originates from the heat trapped within the Earth's core. The Earth's core is made up of extremely hot molten rock known as magma. This heat is a result of the residual heat from the formation of the Earth, radioactive decay of minerals, and the heat produced by the gravitational pull of the Moon and the Sun. This intense heat can reach temperatures of several thousand degrees Celsius.

2. Energy of molten magma inside the Earth:
Molten magma is the liquefied form of rock that exists beneath the Earth's surface. While it is true that geothermal energy is related to the heat energy of the molten magma, it is not the only source of geothermal energy. Geothermal energy can be harnessed from various sources, including hot springs, geysers, and even shallow ground areas where the temperature is relatively higher due to the Earth's heat.

3. Molten lava on the surface of the Earth:
Molten lava refers to the flowing form of magma that is released during volcanic eruptions. Although volcanoes are a manifestation of geothermal energy, the energy obtained from geothermal sources is not limited to molten lava on the surface. Geothermal energy is primarily derived from the heat energy stored within the Earth's crust and mantle, which is not directly related to the presence of molten lava on the surface.

4. Energy obtained from solar thermal electric plants:
Solar thermal electric plants generate electricity by harnessing the heat energy from the Sun. While solar energy is a renewable source of energy, it is distinct from geothermal energy. Geothermal energy is specifically related to the heat energy stored within the Earth, whereas solar thermal electric plants utilize the Sun's energy.

In conclusion, geothermal energy refers to the heat energy stored within the Earth's interior, including the core, mantle, and crust. It is not limited to the molten magma or lava on the surface. Geothermal energy is a valuable renewable resource that can be utilized for various purposes, contributing to a sustainable and clean energy future.