Question

multiple-choice question milk souring physical change chemical change rewatch

Explanation:

Milk souring involves the formation of new substances (like lactic acid) due to the action of bacteria on lactose in milk. A chemical change is defined as a change where new substances are formed, while a physical change only alters the form or appearance without creating new substances. Since milk souring creates new compounds, it is a chemical change.

Answer:

B. Chemical Change