Which of the following would be and example of an independent variable

An independent variable is something that will occur without something else happening.  An example of an independent variable is when your income depends on the number of sales.  In this situation, your income depends on how many sales you make, so therefore, the number of sales you make is the independent variable.

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be

answer7,570,82356 cubic centimeters;