The use of submarines during world war i had which of these effects? it gave an advantage to the coastal nations.
it made naval battles the key battles of the war.
it made it difficult for merchants to bring supplies to the allies.
it prevented the central powers from transporting troops.

explanation:

xbxnxbdndndn

the industrial revolution pushed the world into modern industrialization. it changed the course of history profoundly. it caused rapid urbanization and pushed cities and countries into development. the industrial revolution began in great britain with a series with new inventions which led to the creation of machines and mass production.

this caused the country to gain wealth and money and become an international superpower. it improved transportation and manufacturing inside the country, pushed people to live in urban areas and britain to become the most powerful nation in the world for a while.