Question

Select the correct answer.

Why is large-scale nuclear fission a rare phenomenon on Earth?

A.
There isn’t enough energy to start a chain reaction in nature.
B.
There are no naturally occurring atoms that can undergo fission left on Earth.
C.
Atoms that undergo fission aren’t concentrated enough to sustain a chain reaction.
D.
Atoms that undergo fission tend to decay more slowly on Earth than in stars.

Answer 1

b

Answer 2

B is the correct answer