What allowed Europeans to successfully colonize Africa in the 1800s?

How does the supremacy clause of the u.s. constitution affect the states? o a. it requires each state to establish a supreme court. b. it declares that the federal government can take away state powers if necessary. o c. it allows state governments to overthrow the federal government if necessary. o d. it ensures that the u.s. constitution overrules each state constitution

How did the international community respond to south africa’s policies in the 1980s?

How were african american politics serving in state governments able to make a lasting difference ?