Explain more please!! And I could help more
<span>People in north refused to allow escaped slaves to live in their states
For the north states were against slavery, and known as 'Free states'
hope this helps</span>
The Spanish signed a secret treaty with the French to return the Louisiana Territory to France.
Protective tariffs are taxes, dues, or fees placed on foreign goods. They are a tool countries use to protect domestic industries by reducing competition from international businesses. ... The purpose of protective tariffs is to foster the growth of local industries and protect them from a flood of cheap foreign goods.