Explanation:
Like most stars in our universe, the Sun is on the main sequence stage of its life. This means nuclear fusion reactions in its core fused hydrogen into helium. However, this process cannot last forever since there is a finite amount of hydrogen in the core of the Sun. Currently it has more than 72% hydrogen.
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Punishment is when you give one basic bad thing that comes out of a negative action you do. Examples of this can be with kids giving a time out for yelling or giving them a spanking for saying a curse word. Negative reinforcement is showing them many small things someone can't do, do to a negative action that they MAY do, but hasn't been done yet. More examples would be because a child didn't want to finish their dinner A parent may tell they they can't have TV time and do desert. More often than not anyways a punishment is a physical negative effect after doing something bad. Negative reinforcement is more twords verbal warnings before but can be after where things are taken away due to being bad, like a silent treatment.