A federal system of government is

In federal system, political authority is divided between two autonomous one national and the other subnational both of which operate directly upon the people.

the question is asking about the things that may have affected and what they effects had on the spanish conquest and settlement of america

explanation:

increases in demand are shown by a shift to the right in the demand curve. this could be caused by a number of factors, including a rise in income, a rise in the price of a substitute or a fall in the price of a complement.

which the answer is:

b