Question

What effect did the construction of the transcontinental railroad have on communications mailed from coast-to-coast?

Answer 1

The railroad reduced coast-to-coast communication time from about 180 days to about a week.

Step-by-step explanation:

Answer 2

Answer: It reduced coast-to-coast communication from about 180 days to about a week.

Explanation: it's never to late to answer a question. hope it helps someone!