Why hadn’t europeans used maritime routes before the age of exploration?

a. they feared that the muslims controlling portugal and spain made maritime routes unsafe.
b. they didn’t have the ships and navigation skills to travel around africa to asia.
c. they focused on exploring europe for gold, silver, and other precious metals.
d. they were interested only in trading with other european nations.

How did the war of 1812 contribute to an increase in u.s. manufacturing? a) the war provided more resources for factories to increase production. b) the war promoted trade between countries so that americans could focus on fighting. c) the war cut americans off from their previous supply of imported manufactured goods. d) the war limited transportation in america, making it necessary to import manufactured goods.