Answer:
A. slavery, B. union, C. Central, D. secede, E. (potentially the north or perhaps industries/industrialization?), F. 620,000, South
Step-by-step explanation:
The civil was was fought originally to preserve the union as southern states wanted to preserve their rights to own slaves. However, after a while Lincoln expanded the meaning of the war to the freedom of slaves with the emancipation proclamation. The war achieved this goal to some degree, however with much damage to the south, especially under William T. Sherman and his total war tactics. Deaths were also increased with new technology, such as the mini bol. The north was mainly able to win due to its self sufficiency and industrialization, particularly regarding trains and telegraphs.