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: Both A and R are true and R is the correct explanation of A.
Watt’s steam engine was developed for one industrial problem above all: pumping water out of flooded mines, work that the earlier atmospheric engines did wastefully. His separate condenser cut the fuel needed by three-quarters and made the engine practical. Both are true and R explains A.
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