Answer:
Money and spending
Explanation:
The treasury is where the money or "treasure" is stored and the secretary of the treasury is in charge of that
Because his voyages began a period marked by European empire.
Social Darwinists justified imperialism by saying that human evolution depended on these imperial powers taking control over other nations because of their superiority.
Because there was a investment in industries other than agriculture
I think it is the last one the bank reserves part of the money and uses the rest to make loans to others consumers who need them. but I am not sure