Lincoln risked starting a war with the Confederate States who may interpret the action as Northern aggression.
A committee appointed for a particular or temporary purpose in either the house or the Senate is referred to as a "subcommittee" since they are usually part of a bigger group.
I'll tell you the simple stuff, I hope this helps you. For Japan the leader was to be called an emperor or empress who could only be a part of the royal family if they were related to the Shinto sun goddess. As for Europe, the leader was to be called a king or a queen. Like Japan, not just anybody could become royalty. Kings and queens came from a long descent of an Imperial family........
Canals are man-made, meaning, they are Human Systems.
Faults are natural, meaning, they are <span>Physical Systems.
Floods are not created by man, meaning, they are </span>Physical Systems.
Bridges are man-made, meaning, they are Human Systems.
I hope this helps!