Question

What happens first when a star begins to run out of fuel

Answer 1

A) The stars core shrinks
The star will contract under the weight of gravity.
When it contracts it will heat up and expand to a red giant.
When the star runs out completly of helium it would emit gasses and form a star nebula.
It would then become a white dwarf then into a black dwarf.

Answer 2

Answer:

A

Explanation:

the answer is A) the stars core shrinks