What was the main effect of the Jim Crow system?

According to article 2, what was george washington's major concern about the rebellion in massachusetts?

Select the five weaknesses of the articles of confederation. congress could not declare war or establish an army. congress could not levy taxes. congress could not control trade. not all the states were represented in congress. no national court system. no executive to enforce the laws. congress could not negotiate with foreign governments. the national government could not borrow money. nine of the states had to agree to pass a law.

What does separation of church and state mean?