<span>Second, Congress can make any law it needs to, in order to carry out its enumerated powers.</span>
Answer:
the supreme court ruled that separating children in public schools on the basis of race was unconstitutional
Explanation:
it signaled the end of legalized racial segregation in the schools of the US, overruling the 'separate but equal' principle set forth in the 1896 plessy v. ferguson case.
Answer:
Control variable
Explanation:
During the conduction of experiments for research, a control variable is introduced as a variable the researcher conducting the experiment holds as a constant. It is neither the dependent variable nor the independent variable, but it is something that affects the outcome thereby making it important. Control variable and controlled variable are two different things as the latter is another name for independent variable.