With what we know about the isthmus across the bering strait, why are most people of north america thought of as having european ancestry rather than native american?

due to native americans leaving for warmer climates
due to intermarriages between the populations
due to native populations settled only near the bering strait
due to europeans overpowering native populations

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].