How is the population distributed in South America? a. it is distributed mainly along the coastal areas of the continent.
b. it is fairly evenly distributed throughout the continent.
c. it is mostly confined to the northern half of the continent.
d. it is clustered in the interior of the continent.

A) most people there live along the coastal areas

Earths place in space 

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].