A control variable can best be defined by which of the following statements?

A control variable can best be defined by which of the following statements?





a. influences the independent variable





b. influences the dependent variable





c. cannot be removed or controlled





d. has no observable effectA control variable can best be defined by which of the following statements?
d)


the control in an experiment has no effect on the reaction....if it did then it could not be altered to different levels, temps ect and would therefor just be another chemical in the experiment rather than the control





control, usually water experiments or room temperature.


variable can be altered according to the experiment procedureA control variable can best be defined by which of the following statements?
B-influences the dependent variable
b.... but really id get a differant ddefenition. like a more proffesional version of ';the variable that stays the same';
b