Question

3. What is the purpose of a control in a scientific experiment?

Answer 1

Answer:  to minimize the effects of variables other than the independent variable (i.e. confounding variables)

Step-by-step explanation:

A scientific control is an experiment or observation designed to minimize the effects of variables other than the independent variable (i.e. confounding variables). This increases the reliability of the results, often through a comparison between control measurements and the other measurements.