Noting that most rural areas across the world are agricultural, some push factors that would cause one to move to an urban area include drought and famine, conflicts and disputes, decline in subsistence farming as a result of development of commercial agriculture, poverty, lack of proper amenities and services. Urban settlements provide people with all necessities thus leading a decline to rural areas
True because sometimes your friends may smoke and to fit in you may do it also.
Slaves. After all, africans had the strongest immune system, so the Europeans went after them, for slavery. They asked African Kings for some of their citizens as slaves, and that they would pay them. The Kings obliged, and slavery begun.
Hope this helps!
MidnightQueen