Option D)>>independent variable...
The control can't be changed because it's the control, the
hypothesis is something you are trying to prove, the dependent variable is a
variable that varies because of independent variable. So, the single factor
that altered in an experiment is the independent variable
The control can't be changed because it's the control, the
hypothesis is something you are trying to prove, the dependent variable is a
variable that varies because of independent variable. So, the single factor
that altered in an experiment is the independent variable
