Why is it difficult to determine which countries belong to europe and which belong to southwest asia? . (points : 1). the river that separates them follows a complex path.. there is a large amount of cultural overlap between the two regions.. the european union is always changing membership.. the two regions share a common language..

It is difficult to determine which countries belong to Europe and which belong to Southwest Asia because there is a large amount of cultural overlap between the two regions. The correct option among all the options that are given in the question is the second option. I hope that the answer has helped you.

Exposed great deposits of coal and iron ore

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].