Question

How did the transcontinental railroad affect communication?
It made coast-to-coast communication happen almost instantly.
It reduced coast-to-coast communication from a week to a day.
It reduced coast-to-coast communication from months to weeks.
It made coast-to-coast communication more complicated and costly.

Answer 1

The correct effect of the transcontinental railroad on communication is that it reduced coast-to-coast communication from weeks to days. Prior to the railroad, it could take a significant amount of time (often weeks) to send messages or transport goods across the country. With the advent of the transcontinental railroad, transportation became much faster and more efficient, significantly speeding up communication and the delivery of mail and goods across the United States.