Question

Which project led to the creation of a system of time zones across America?

Question 3 options:

establishing a national park system

acquiring the territory of Alaska

digging the Panama Canal

building the transcontinental railroad

Answer 1

On November 18, 1883, America's railroads began using a standard time system involving four time zones, Eastern, Central, Mountain and Pacific.

Step-by-step explanation:

therefore your answer should be building the transcontinental railroad.

Answer 2

Transcontinental Railroad, because the railroads needed coordinated schedules.