Question

this diagram compares the two industrial revolutions. + introduction of steam power + first factories + increased production + increased use of machinery + bessemer process first industrial revolution second industrial revolution which phrase best completes the diagram? successful entrepreneurs gain great wealth petroleum based fuels changes in a market economy mass production of goods

Explanation:

The Second Industrial Revolution was characterized by the development of new energy sources. Petroleum - based fuels became prominent during this time, powering new inventions like the internal - combustion engine. The Bessemer process was also a key innovation of this period related to steel production. The other options are either more general (changes in a market economy, mass production of goods) or not as directly associated with the technological and industrial advancements specific to the Second Industrial Revolution as petroleum - based fuels. Successful entrepreneurs gaining great wealth is a consequence rather than a defining technological or industrial feature.

Answer:

Petroleum based fuels