Why were economics an important reason for Europeans to find alternate trade routes to the Silk Road?

There was a desire for riches.
Leaders needed money to run their countries.
Families needed money to support themselves.

c, they united with once

the

that would be the steamboat because none of the other things are forms of transportation

necessary and proper clause. the congress shall have power to all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states, or in any department or officer thereof.