In Sun, the important source of energy is

In Sun, the important source of energy is
  1. proton-proton cycle
  2. carbon-nitrogen cycle
  3. carbon-carbon cycle
  4. nitrogen-nitrogen cycle

Solution

In Sun, the important source of energy is proton-proton cycle. According to this cycle nuclei of hydrogen through many reactions fuse to form nucleus of helium and in this process huge amount of energy is released.

Asked in: AP EAMCET 2007

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