Huurry upp plzz why was control of the atlantic ocean essential to great britain’s success in world war ii?

britain depended on the atlantic for overseas communication.

britain depended on fishing the atlantic waters for food.

britain was an island nation dependent on trading to keep its economy strong.

britain was an island nation dependent on shipping for the supplies it needed.

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.