Answer: Economy
Explanation:
Much like in politics, war is usually decided by money. Who has enough money to finance the war campaign such that their soldiers can get the best equipment and means to keep up the war effort.
The North had that advantage over the South and other advantages flowed from this. With a superior economy which was based on industry and finance, the North could levy taxes and collect more money from their people than the South could.
With this money they were able to buy better guns, better equip their navy, supply food to their soldiers and transport them around on railroads as well. The economy of the North made it such that they had a resource advantage over the South and they used this to their advantage from the mid to the late stages of the war.
The correct answer for this question is this one: "B) widespread use of public transportation." Prior to WWII, people living in cities in the United States enjoyed widespread use of public transportation.
Here are the following choices:A) a housing boom.
B) widespread use of public transportation.
C) increasing quality of public housing.
D) improving air quality.
Realised that the physical and chemical properties of elements were related to their atomic mass in a 'periodic' way, and arranged them so that groups of elements with similar properties fell into vertical columns in his table.