Which of the following is responsible for about half of the heat generated by earth's core?

a. sunlight
b. residual heat from earth's formation
c. frictional heating
d. radioactive decay of elements

half of the heat produced by the Earth's core is:

D. The decay of radioactive elements

Geothermal energy is heat energy that is contained and formed in the bowels of the earth. geothermal energy comes from technological activities that exist in the earth that have occurred since the earth was created. Besides, geothermal heat also comes from sunlight that is absorbed by the earth's surface. In addition to the heat sources mentioned earlier, geothermal is thought to originate from the following phenomena:

- the decay of radioactive elements below the earth's surface.

- electromagnetic effects that are influenced by magnetic fields that exist on earth.

- the heat released by heavy metals due to sinking into the center of the earth.

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Geothermal

Earth's heat generated

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Grade: Middle School

Subject: Biology

keyword: geothermal, heat produced by the earth

the element that provides strength to the exoskeletons of clams and oysters is phosphorus. this is so because calcium carbonate is the main component in the shells.

explanation: