- Infer The Mississippi River watershed is bor-
dered by the Appalachian Mountains to the
east and the Rocky Mountains to the west. Why
does it make sense that mountain ranges form
natural watershed boundaries?

Increasing the release of greenhouse gases and pollution

Amath expression is a collection of one or more terms, which are separated by the signs ( + , - , x , / ).example :   8+b8+b  or  a−3a−3in algebra, an equation is a mathematical statement with two expressions where, each expression is separated by an equal (=) sign. variables can be present on both the sides of the equality (=) sign and we use letters to denote such variables.example 1:   x=4+2x=4+2  , [here, we can observe that the variable is present only on one side of the equation].example 2:   2x+3=x+42x+3=x+4  , [here, we can observe that the variables are present on both side of the equation].

Answerscripps institution of oceanography; i believe this is correct plz check first good luck;