Question

Which answer best describes the main benefit of the steam engine?

It was used to create road-building materials.
It was used to power trains and steamboats.
It was used to run many factories in the 1820s.
It was used to help dig canals and build railroads.

Answer 1

I checked because i just did this test and it was b, it was used to poer trains and steamboats!! :)

Answer 2

it helped power the trains and steam boats.