Question

Assertion (A): Canning is an effective method for preserving food by creating a sealed environment.

Reason (R): The sealed environment in canning prevents the growth of bacteria and other microorganisms, preserving the food.

Options

• A is true but R is false.

• A is false but R is true.

• Both A and R are true and R is the correct explanation of A.

• Both A and R are true and R is not the correct explanation of A.

Answer 1

Both A and R are true and R is the correct explanation of A.

Explanation:

Canning preserves food effectively because the sealing process creates an airtight environment that keeps out external contaminants. Combined with high heat during processing, this lack of oxygen prevents harmful microorganisms from surviving, growing, and spoiling the food.