Geothermal energy is produced inside Earth by _____.
A)volcanism
B)subduction processes
C)radioactive decay
D)asthenosphere motions
E)explosions

Question

Quizplus · Accepted Answer

Geothermal energy is primarily generated by the heat produced by the natural decay of radioactive isotopes such as uranium, thorium, and potassium in Earth's crust and mantle. This heat is constantly being produced, and it drives thermal processes such as volcanic activity, geysers, and hot springs. While other processes such as subduction and asthenosphere motions can indirectly influence geothermal energy production, they are not the primary source of energy. Explosions are not a source of geothermal energy.

Geothermal Energy Is Produced Inside Earth by _____