Let's discuss
i'm only in 8th grade and this is for recreational purpose so it might sound kinda stupid to people who have a greater understanding

Explanation:

This is not a new theory, it states that the entire universe will run out of dark matter that keeps the universe inflating,the entire universe succumbs to gravity and merges into a point and then big bang... you know the rest.

P.s I'm also in eighth grade, but don't think that my explanation is dumb or something..it is true fact

answer: option c.

explanation:

what experimental evidence led scientists to change from the previous model to this one?

a few of the positive particles aimed at a gold foil seemed to bounce back.

the colors of light emitted from heated atoms had very specific energies.

experiments with water vapor showed that elements combine in specific proportions.

cathode rays were bent in the same way whenever a magnet was brought near them.