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Q1.
At the end of the stable stage of its life a star will change.
Describe and explain the changes that could take place
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When the hydrogen in a star runs out, the star can’t do nuclear fusion like before. The star expands and turns into a red giant.
After that, it shrinks because of gravity. If it’s a smaller star like the Sun, it becomes a white dwarf.
If it’s a much bigger star, it can explode in a supernova, throwing out dust and gas into space.
What’s left behind could be a neutron star, or if the star was really massive, it could turn into a black hole.

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