emmaleegoodman7
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Which sentence from the passage supports the idea that the "world is chiefly indebted" to James Watt and George Stephenson for developing the steam engine?
A.
The first train consisted of thirty-four cars weighing, all told, ninety tons.
B.
Before the time of Watt, the steam engine was exclusively a steam pump—slow and wasteful of fuel.
C.
The idea of using steam for driving stationary machinery originated in the early centuries.
D.
Watt made it a quick, powerful, and efficient engine, requiring only a fourth as much fuel as before.

Answer :

The correct answer to this question is D because this answer is describing how the steam engine helped. Are you using Study Island?

James Watt was the Scottish inventor, who invented the steam engine, and was the major contributor to the Industrial Revolution in the 1900s.

The sentence 'world is chiefly indebted' is referred to the Watt, who made a quick, powerful, and efficient engine, requiring only a fourth as much as fuel as before.

Watt steam engine improved the efficiency of steam engines. The engines were smaller and powerful, which required less amount of coal. Watt steam engines were primarily used in factories in the late 18th century.

Steam locomotives were heavy and emitted carbon dioxide directly into the atmosphere. The air quality became poor, and the factories and industries accepted it as a normal thing.

Thus, the sentence world is chiefly indebted is given by Option D.

To know more about steam engines, refer to the following link:

https://brainly.com/question/9273260

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