Through the early and mid-1800s, the city of atlanta's population grew. which of the following is credited as the key reason?
a. shipbuilding
b. agriculture
c. steamboats
d. railroads

Answer:    D. railroads

The key reason for Atlanta’s population growth during the 1800s is railroads.  

Explanation:

In 1836 Georgia decided to construct railway lines to the south west and Atlanta was chosen as the location for the terminus. Then the town grew as a settlement.  

After some more years railway lines from four different directions arrived there and the town then grew to a rail hub for South US.  Rail industry growth was crucial in the emerging of Atlanta as an important city.

Atlanta was also a significant location during the civil war because it was a major distribution hub. It was bombed by union troops but Atlanta recovered after civil war with the rise of manufacturing industries.

according to hess's theory, when the magma cooled, it would expand and push the tectonic plates apart. it would push the north and south america plates to the west and eurasia and africa ones to the east. the atlantic ocean would get wider but the coastlines of the masses would stay the same.

harry hammond hess was a geologist and a united states navy officer in the second world war. he is considered to be one of the founding fathers of the theory of plate tectonics. he is known for his theories on sea floor spreading, stating that the movement of the continents was the result of see floor spreading. the continents are attached to the plates and do not move separately. the plates themselves shift and change shape, carrying the continents along.

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