They study the physical systems as an example of natural changes that take places like the hurricane, cyclone earthquake, and even floods. These change the earth's surface areas and these are physical changes that are interrelated and interlinked with each other.
St. Louis is a major city that is located in Missouri along with the Mississippi river system and is 630 feet in length and has a discharge volume of water.
And to forms the straight line between the Illinois and Missouri and merger wot the Mississippi form the fourth largest river system of the world.
