Question

what is a physical change? a change in which the substance retains its original properties a change that results in the formation of a new substance a change that involves a chemical reaction a change that cannot be reversed

Explanation:

A physical change is a transformation where the substance's chemical composition remains the same, thus it retains its original properties. Changes that result in new substances or involve chemical reactions are chemical changes. Some physical changes can be reversed (like melting ice can be refrozen).

Answer:

A. A change in which the substance retains its original properties