Question

1. george stephenson was a british inventor and engineer who designed many of the first railroad tracks. how did stephensons work contribute to the success of the railroad system?

he designed a type of track that could be curved around obstacles more easily.
he worked with locomotive designers to ensure the the trains would run smoothly on his tracks.
he insisted that all of the tracks he designed conformed to a standard size, which made it easier to connect all the tracks later.
he build his tracks using a type of steel that would last a long time because of the proportion of iron

Explanation:

George Stephenson's key contribution to railroad success was standardizing track gauge. This uniform size allowed seamless connection of tracks across different sections, enabling trains to travel uninterrupted over large networks, which was critical for the railroad system's widespread functionality and growth.

Answer:

He insisted that all of the tracks he designed conformed to a standard size, which made it easier to connect all the tracks later.