Identify changes that resulted from the Second Industrial Revolution, and then briefly summarize them in a chart, list, or paragraph.

Question

These aren't all of my changes that I've identified. I just wanted to know whether I'm correct with the changes that I've listed so far.

A:

1) The substitution of steel for iron.

2) Machines were built lighter, faster, and smaller.

3) Electricity was a major new form of energy that became a valuable source of heat and light.

5) Streetcars, subways, conveyor belts, cranes, manufacturing machines, ocean liners, warships, airplanes, and automobiles were invented.

6) Oil or gasoline provided a new source of power in transportation.

7) Europe developed a world economy.

Answer 1

Good!