Explain why the distance between parallels is constant but the distance between meridians decreases as the meridians approach the poles.

The distance of parallel is always constant as it is the perpendicular distance from a point on one line to the other line so it does not matter which point is chosen to measure the distance. While for meridians  the distance between poles decreases as you near the poles as the circumference of the earth is lower as you near the poles.

D.haka is the first answer and a.canberra is the second answer

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].