What are the advantages and disadvantages of european feudalism

How did the union blockade of the southern coast affect the confederacy? it forced the confederacy to build new railroads. it contributed to shortages of weapons and food. it encouraged europe to trade with the south. it halted all trade, leaving the south without supplies.

Which diagram most accurately explains changes in media over time

Does anyone know why the second great awakening occurred? (i need an answer asap because this is a question on my assignment! < 3 : ))