Answer:
James Watt- steam engine with condenser- used much less coal than earlier engines.
Henry Bessemer- Industrial process for steel production- made it cost efficient to produce steel from molten iron on a large scale.
Eli Whitney- Cotton gin- Allowed fibre to be extracted from seed more efficiently.
:)
It is <span>A : Northern and southern
</span>
I am pretty sure it was the Ming dynasty
Your answer should be “Prediction” :D
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