The railroad network that developed during this period linked
a) the northeast to the northwest.
b) the northeast to the gulf coast.
c) the east coast to the west coast.
d) new york to new orleans.
e) richmond to atlanta.

they required less loading and unloading

explanation:

the shipping container improved shipping because it cut down on unloading time by three weeks, eliminated wasted space, and allowed ships to carry.

first industrial revolution - the first wave of the industrial revolution lasted from the late 1700s to the mid-1800s. it industrialized the manufacture of textiles and began the move of production from homes to factories. steam power and the cotton gin played an important role in this period.