During the civil war, the union benefitted from a steady stream of new immigrants, some of whom fought in the war. what kept the south from enjoying the same measure of ?

The south did not have a large influx of immigrants because it had a weak economy, based on rural labor with slaveholding latifundium.

Explanation:

In the north, capital accumulated during the colonial period created favorable conditions for industrial development whose labor and market were in wage labor. The abundance of hydropower, mineral wealth and ease of transportation contributed greatly to a large influx of immigrants and to the progress of the region, which advocated a protectionist economic policy. The south, with a hot and dry climate, remained behind with an agro-exporting economy of cotton and tobacco, based on slaveholding latifundium. Industrially dependent, the south was frank defender of the free-trade, characterizing more a counterpoint with the reality of the north.

i dont know. sorry : (

the underground railroad (apocope of the metropolitan railroad) is a system of urban trains located within a city and its metropolitan area. it is characterized for being a massive transport of passengers in the big cities, uniting diverse zones and their environs, with high capacity and frequency and in segregated form to other systems of transport. metropolitan railroads are built underground or on the surface, although most systems use mixed models where sections are combined in both modalities.

1 - as a result, the metro tends to reduce car travel for two reasons: first, due to the greater transfer of users from the car and, second, due to the reduction in the acquisition of cars in homes located in sectors near the stations of the metro.

2 -the metro allows to contribute effectively to the achievement of all the objectives of an urban development policy: it improves the efficiency of the city's economy by reducing travel costs and also generates a higher level of activities in the city center, taking advantage of of the agglomeration economies.

3 -it is a clean means of transport, since it uses renewable energy (usually electricity), taking care of the environment and avoiding excessive pollution.