How have laws, policies and systems developed to enforce the enslavement of black Americans before the civil war influenced laws, policies and systems in years since?

but whats the question? ?

explanation:

this year in rap and hip hop radio

d

explanation:

i think that this is the best answer, but im sorry if this is wrong

radioactive dating, also known as  radioisotope dating  is a process that in  estimating the approximate  age  of  rocks. these data can be analyzed from  the studies dealing with the  decay of the radioactive elements that are present in these rocks. in nature, there are a few types of materials or atoms which are quite unstable and they spontaneously decay or breakdown to form other kinds of atoms.