<span>The voting age was decreased from 21 to 18 because it was thought this would lead to less protesting by students. Before the age was lowered, there were young men being drafted, but they were not old enough to vote.</span>
Span of control means that each individual will be assigned to only one supervisor. Hope this helped :)
The battle you are referring to is actually called the Battle of the Ironclads. In this battle, it was the Merrimac (from the Confederacy) versus the USS Monitor (from the Union). This was the first battle between iron-fortified vessels in the Civil War. This battle ended up in a draw but represented a new form of fighting that both the Union and Confederacy had to be ready for.
the government outlawed participation in strikes and other forms of labor protests (apex)
