Question

what substance is used as the control for this virtual experiment?
○ egg whites
○ potatoes
○ milk
○ water

Explanation:

In scientific experiments, water is often used as a control because it is a simple, neutral substance with no complex biological or chemical components that could interfere with the results being tested. Egg whites, potatoes, and milk have biological and chemical properties that could confound an experiment.

Answer:

water