The core of earth is hot due to _.
Correct answer: C. Frictional forces
- A. Fission reactions
- B. Fusion reactions
- C. Frictional forces
- D. All of these
Explanation
The core of Earth is hot due to frictional forces produced between the outer core and mantle of Earth . B . Such a nuclear reaction in which two light nuclei merge to form a heavy nucleus is called fusion reaction. A . Nuclear fission is a reaction in which nucleus of an atom splits into two or more smaller nuclei .
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