Question

It takes an extremely high temperature for nuclear _____ to occur inside the sun.

Answer 1

The correct answer is fusion.

For a nuclear fusion to occur in the sun it takes high temperature.

Nuclear fusion is termed as reaction whereby two or more atomic nuclei they come together to form subatomic particles and different atomic nuclei.

The release of large amounts of energy is manifested in the different in mass which is between products and reactants. Helium and hydrogen are among the lighter elements which are fusible.

Plutonium, thorium, uranium are heavier elements and are fissionable.

Answer 2

It takes an extremely high temperature for nuclear "fusion" to occur inside the sun, since this is the dominant source of energy as opposed to nuclear fission, which also takes place but at much smaller levels.