Question

Which is/are used in nuclear reactors to absorb neutrons?

A. heavy nuclei

B. critical mass

C. chain reactions

D. control rods

Answer 1

A. heavy nuclei

Step-by-step explanation:

They absorb neuyrons in order to hain stability.

Answer 2

D. Control rods

By absorbing neutrons, a control rod prevents the neutrons from causing further fissions.