Nuclear fusion occurs in stars but not on earth because Elements capable of undergoing fusion can’t be enriched on Earth. Option D. This is further explained below.
Generally, Nuclear fusion is simply defined as a nuclear reaction in which limited atomic nuclei merge to generate a heavier nucleus, releasing energy in the process.
In conclusion, Because elements susceptible to conducting fusion cannot be concentrated on Earth, nuclear fusion happens in stars and not on Earth.
CQ
1.Why does nuclear fusion occur in stars but not on Earth?
A.There are no elements on Earth that can undergo fusion.
B.Too many free neutrons are present on Earth.
C.Fusion reactions require a lot of heat and pressure.
D.Elements capable of undergoing fusion can’t be enriched on Earth.
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