James watt played an important role in the industrial revolution by

developing a process to make textiles efficiently.
making steam engines a reliable power source.
inventing the steamboat to carry goods and people.
encouraging the growth of cottage industries.

James Watt played an important role in the Industrial Revolution by making steam engines a reliable power source.

Explanation:

James Watt was a Scottish inventor and mechanical engineer whose further development of Thomas Newcomen's steam engine was one of the basic prerequisites for the industrial revolution.

With the help of a separate capacitor the steam could be utilized more efficiently. It was important to use steam engines in the factories. Soon, Watts machine was used to pump water out of pits, it operated machines in the cotton mills, and eventually it was also used to power ships. Watt further improved the steam engine when he invented the piston steam engine, and it was he who first introduced the concept of horsepower. In addition, he made the world's first copier.

2: albert einstein was one of several german scientists who the allies defeat the nazis

explanation:

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