Answer:
The North was industrialized, while the South was more agricultural.
Explanation:
The North had many factories and didn't have many slaves. The South had many plantations and many slaves. This difference was part of the reason the Civil War started.
I believe the answer is: positive externality
Positive externality refers to The benefit that enjoyed by a third party when the first and second party are conducting a transaction.
When you receive a vaccines, you prevent yourself from becoming a host that could contaminate other people from getting the virus. In the example above, you and your children are the first and second party. And other children are the third party.
Russia taking control of Eastern European countries.
Answer:
A, because of the cataracts.
Explanation:
The cataracts made the river too dangerous to travel in as the rock filled rapids would destroy the boat, and destroy them.