How did the railroad companies benefit from the government's desire for expansion to the west? a. they used slave labor supplied by the government
b. the land was flat and perfect for travel
c. most of the supplies were shipped to california in advanced
d. they were offered land grants for the land on which the tracks were laid

calvin taught his followers that human beings needed to follow strict rules to overcome their nature and do good. second choice

to protest slavery i would think it would be a

the correct answer would in fact be b. (:

the lines on a surface map are called isobars. isobars are lines of constant pressure which are measured in units called millibars. the numbers indicate the amount of air pressure, in millibars, that each line represents.