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    Question

    The source of the Sun's energy is the process of

    –
    A The source of the Sun's energy is the process of – Correct Answer Incorrect Answer
    B Nuclear fission Correct Answer Incorrect Answer
    C Nuclear fusion Correct Answer Incorrect Answer
    D Thermionic emission Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Nuclear fusion is a nuclear reaction in which two or more atomic nuclei join together, or "fuse", to form a single heavier nucleus. During this process, matter is not conserved because some of the mass of the fusing nuclei is converted to energy which is released. Fusion is the process that powers active stars.

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