Which of the following subjects contributes to Home Economics by explaining the process of food preservation and chemical changes in cooking?

Chemistry explains chemical reactions during cooking and food preservation. Understanding how heat changes proteins or how salt preserves food requires chemistry knowledge.

Chemical processes occur when food cooks, ferments, or is preserved. Chemistry helps explain why certain preservation methods work and what happens to nutrients during cooking.

Physics studies motion and energy. Geography studies places. Agriculture grows food. Only Chemistry explains the chemical processes in food preparation and preservation.