By being in the north and wanting the south to rid of slaves, and to make them join the north. but the south only had huge amounts of farm land, and no way to sow, till, or harvest all that land with out a few hundred slave workers. the north seen that as unnescessary to do. the north also laid out laws that the south didnt agree with leading to the southern states declaring independancy against the north witch lead to war.
helped promote exploration, and economic interests
<span>People are "pushed" away from the rural areas because of the lack of opportunities in such areas. Many young people are also "pushed" by a lack of cultural/social opportunities in the rural areas. "Pull" factors are those that make people want to come to a given place.</span>
Search it up on google sorry can’t help