What wasn't a advantage for the north at the beginning of the war?

I am assuming that you mean the Civil War. So the North was at a disadvantage because most of the South already had trained soldiers. The North also had to leave their home turf and invade the South, the South just had to defend. 

The answer is installation.

Spread knowledge of agriculture to humans around the worldprevented human development of language and other ideaswas not a part of human life until only the last 2,000 yearsencouraged most human groups to maintain a nomadic life