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!
George Pullman started the Pullman strike by railway workers that led to nationwide unrest
Carl Vinson's work <span>in naval expansion aided in defense needed during the Pearl Harbor attack</span>
He had a reputation for religious tolerance