Simple Question.


While the first Industrial Revolution saw a change in producing goods using human and animal power to machines, the second Industrial Revolution of the 19th century saw a change from using ____ to ____.

AStone; Metal
BIron; Steel
CMachines; Humans & Animals
DSelf-learning robots; man-powered simple machines

Verified Answer :

While the first Industrial Revolution saw a change
in producing goods using human and animal power to machines, the second
Industrial Revolution of the 19th century saw a change from using Iron to steel.