Discussion
Assertion(A) : The steam engine was invented by James Watt.
Reason(R) : There was a problem of taking out water from flooded mines.
Answer: A
Correct answer: R correctly explains A
Watt’s steam engine was developed for one industrial problem above all: pumping water out of flooded mines, which the earlier atmospheric engines did at ruinous cost in fuel. His separate condenser cut that fuel by three-quarters and made the engine practical, so R correctly explains A.
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