Question

Which of these changes during the Industrial Revolution led to greater efficiency?

Answer 1

D) Animal & human power were generally replaced with steam power.

Answer 2

D) Animals and human power were generally replaced with steam power.

The steam engine was one of the most important inventions of the Industrial Revolution . Steam engines were used in all sorts of applications including factories, mines, locomotives, and steamboats. Steam engines use hot steam from boiling water to  a drive piston back and forth.