How have racial discrimination change and improved since the time of Lyman t . Johnson ?

It has gotten better in some aspects and worse in other aspects

Explanation:

(i can't select because there is no options but, i will answer) using evidence effectively. most of the assignments you will do in university will ask you to make an argument, to take a stance, or to prove a hypothesis. the best way to do this is to research the topic, develop a thesis statement, hypothesis, or claim and then use evidence to support this claim.