Question

elaborate on the difference in natural occurrences between nuclear fission and nuclear fusion reactions.
a neither nuclear fission nor nuclear fusion reactions naturally occur on earth or outer space.
b nuclear fission reactions rarely occur naturally while nuclear fusion reactions occur in the stars.
c both nuclear fission and nuclear fusion reactions readily naturally occur in the pressure of the earths core.
d nuclear fusion reactions do not naturally occur while nuclear fission reactions occur in the volcanoes.

Explanation:

Nuclear fission is rare in nature but can occur in some uranium - 235 deposits. Nuclear fusion occurs in stars where high temperatures and pressures allow hydrogen nuclei to combine.

Answer:

B. Nuclear fission reactions rarely occur naturally while nuclear fusion reactions occur in the stars.