Which answer best describes why the Watt steam engine important to America in the 1830s?

The first gold mining tools, using the Watt engine, were designed for the gold rush.
The first American steamboat, based on Fulton's design, used the Watt engine.
The first American roads were built using Fulton and Watt's steam engine.
The first American locomotive was powered by Watt's steam engine.

The answer is: The first American steamboat, based on Fulton's design, used the Watt engine.

Explanation:

In the decades following the Revolutionary War there was a lot of growth in the southeastern United States. There was a westward expansion and the rivers that were located westward like the Mississippi and the Chattahoochee were important for travel and for moving goods. In 1769 a Scottish inventor named James Watt invented a steam engine that other inventors would take as the heart of their own creations. One was Robert Fulton who engineered the first successful steamboat called the Clermont using the Watts engine in 1807. An earlier attempt had been made by John Fitch in 1787, but they were too expensive to be bought and operated.

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