Question

The diagram shows the three steps of the fusion process in the Sun.

Answer 1

Answer:

D. Z, X, Y

Explanation:

Step 1: Z

Within the Sun two protons fuse together and when this proton-proton pair breaks apart one proton transform into neutron due to weak nuclear force. Along with transformation of neutron, a positron also formed and proton-neutron pair sometimes form deuterium.

Step 2: X

Collision of third proton takes place with deuterium and this collision results in formation of Helium-3 along with gamma rays. These gamma rays are also released as sunlight.

Step 3: Y

Collision of two Helium-3 nuclei takes place which results in creation of Helium-4.