Two long term effects of the transcontinental railroad were the promotion of national unity and the creation of time zones. is this statement true or false?

True

Explanation:

It is true that two long-term effects of the transcontinental railroad were the promotion of national unity and the creation of time zones. National unity incerased after the railroad because the various regions of the country became more interconnected, bringing people together. The creation of time zones was also an effect as they became necessary in order to ensure that train timetables were efficient and understandable.

answer; i believe the two groups were irish immigrants and chinese immigrants;

russia because it is the biggest state