Answer to your question when I factored:
4a^2 (8a+3)
So many men were ready to enlist because of what the war was about. In the South, men wanted to enlist so they could keep their slaves to do their work for them. In the North, men were ready to enlist because they thought slavery was wrong, as it was.
Answer:
as it prevent us from germs,virus and other harmful elements
People purposefully trekking in a straight line on a tundra from Siberia to Alaska<span>, as if there was some destination on the other side and the only way to get there was to follow the leader, one behind the other.</span>