What kind of objects make up most of the visible matter in a galaxy

 dust,gas,and stars make up most of the galaxy and for that, when a star dies out it explodes and all this stuff i've named is what happens. and blak holes start until a new star comes up and all that dust and gas  makes up most of the galaxy.  i don't know the rest .i'm sorry

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this allows people to make the best decision or pursue the best option. when alternatives are weighed using their advantages and disadvantages, the option whose disadvantages outweigh the advantages (based on a qualitative or quantitative analysis) are shunned while those whose advantages outweigh their disadvantages are pursued.