Why do nuclear fusion reactions only take place in the interior of a star?
A) The magnetic fields are strongest there.
B) The temperature is the hottest in the center.
C) The density of material is very high in the center.
D) Both b and c
E) FALSE; Nuclear fusion reactions can take place in the core and corona where temperatures are high enough.

Question

Quizplus · Accepted Answer

Nuclear fusion reactions require high temperatures and densities, which are only found in the central regions of stars. Magnetic fields may play a role in confining the plasma where fusion occurs, but they are not the primary reason fusion only occurs in the interior of stars. It is not true that fusion reactions can take place in the corona, which is not dense enough to support them.

Why Do Nuclear Fusion Reactions Only Take Place in the Interior