Earth's two chief energy sources for all of its heat and geologic processes are ________.
A)oil and coal
B)external solar radiation and internal decay of naturally radioactive elements
C)tidal forces and wind
D)wind and ocean currents

Question

Quizplus · Accepted Answer

Oil, coal, tidal forces, wind, and ocean currents are all forms of energy, but they are not the chief sources of heat and geologic processes on Earth. The two primary sources are external solar radiation from the Sun and the internal decay of naturally radioactive elements like uranium and thorium within Earth's mantle and core. These two sources are responsible for driving processes like plate tectonics, volcanic eruptions, and the formation of Earth's magnetic field.

Earth's Two Chief Energy Sources for All of Its Heat