Question

When nuclear fusion begins, what can be said about the internal processes within that star?

Atoms in the star begin to split.
Atoms in the star begin to combine.
The star is turned into a nebula.
The star is turned into a blue giant.

Answer 1

Atoms in the star begin to combine.

Step-by-step explanation:

Answer 2

Hi there! Hopefully this helps!

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The answer to your question is the second sentence:

Atoms in the star begin to combine.