Rank the four geological erars according to what you believe is the order of the era that has had the most impact on the development of the planet to the one that has had the least influence. Support your choices with specific examples.​

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].

Hey there  jaylajakara15p8gvfy! question:   approximately what per cent of russia is used for permanent cropland? answer: b) 10%hope this ! -jayden