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Which important contribution did James Watt make to the Industrial Revolution? He improved methods of iron smelting.

He developed ways to increase crop yields.

He developed a seed drill for planting.

He perfected a new source of energy.

He perfected a new source of energy.

Explanation:

James Watt, who, directing the power of his extraordinary mind to improving the steam engine, increased the wealth of his country, increased the strength of human, occupies the place among the most prominent adherents of science and the true benefactors of mankind. In January 1769, James Watt received a patent for his invention. In fact, he did not invent a steam engine, but only modernized what was invented before him. But the technical nuances introduced by him were enough to make the device efficient for using steam energy in industry. This gave an impetus to the industrial revolution and forever entered the name of James Watt in history.

no statements but ok.

the statement that best describes the idea of manifest destiny that was used in the 19th century would be that "it was fate that the united states would continue to  expand westward," since people thought the us was "destined" to do so. 

gays

explanation: