Which of the following is true of an industrial society? Check all that apply
A.) The birthrate rises steadily
B.) There are fewer infant and child deaths
C.) The cost of raising a child drops significantly
D.) Birthrates drop, and may even drop low enough to reverse population growth

The answer is c) people evacuated but almost all returned

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].