Someone please help 4. Why is it said that the kingdoms of Castile and Aragon were a double monarchy?

answer; i believe that the correct answer is (agriculture);

the completion of the erie canal spurred the first great westward movement of american settlers, gave access to the rich land and resources west of the appalachians and made new york the preeminent commercial city in the united states.

b. germany and italy

question 10: the answer is c, to their constituents address a problem.

question 11: i think it would be domestic bills, which deal with american issues only and public bills, which affect the whole nation.