Answer:
so we can commcommunicate and understand each other back in the day people would scream to other people if they where in danger voices can is useful to wok together
Explanation:
Kaori From your lie in April I think
Answer:
knowledge of laws and regulations
Explanation:
If you are referring to during the time of slavery, up north there was no slavery and they were free. If you are referring to during the civil Rights movement, African Americans faced less discrimination up north and no Jim Crow laws.
