Hey can you guys me with this question? .ways that water impacts the land? ways that water impacts civilization? explain water's influence on the earth and the life on earth?

Water has a big impact because it help the land not be all dry and so people can live on it.

Ibelieve the answer is c also i'm in k12 too

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].