Before that switch, the machinery of the first industrial age had been driven by:
ASpring motors
BSteam engines
CSolar panels
DSail power
Answer & Solution
Correct answer: B. Steam engines
1. Coal was burnt to raise the power.
2. Water power had come before it.
3. It was steam engines.
_Source: OpenStax World History Volume 2, Chapter 10, Inventions, Innovations, and Mechanization._
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