Venn diagrams represent the logical relation in statistics or probability. The label P best describes energy released during nuclear reactions. Thus, option D is correct.
What are nuclear reactions?
Nuclear reactions are the process where the nucleus collides and reacts with external subatomic particles to yield nuclides that are new and can be more in number.
The nuclear reaction in the sun combines the atom through the process of nuclear fusion. The reaction results in the formation of the new and big nuclei with a large amount of heat. The nuclear power plants split the atoms by nuclear fission resulting in energy in the form of radiation and heat.
Therefore, label P describes the release of energy or heat.
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