We can say that a star is a chemical elements factory, It is true that
Less massive stars fuse till Ne
The creation of heavier elements depend on core´s temperature
Carbon is the heavier element the Sun can fuse
Why the iron creation is so problematic?
It releases a poor amount of energy
It does not release any energy
None of them
The final stage of a very massive star is
Neutron star
Black hole
White dwarf
Should we be afraid of the explosion of a supernova?
No, they are far away from us, except Spica
Yes, any star closer than 100 light years
None are correct
The death of a supernova is the beginning of other stars
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