Assertion (A): Water boils at 100 degrees Celsius at sea level. Reason (R): Atmospheric pressure affects the boiling point of water.

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Assertion (A): Water boils at 100 degrees Celsius at sea level.

Reason (R): Atmospheric pressure affects the boiling point of water.

ABoth A and R are true, and R is the correct explanation of A.

BBoth A and R are true, but R is NOT the correct explanation of A.

CA is true, but R is false.

DA is false, but R is true.

Answer:

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

Read Explanation:

Answer: A - Both A and R are true, and R is the correct explanation of A. Explanation: Both the assertion and reason are true. The boiling point of water varies with changes in atmospheric pressure, and at sea level, it boils at 100 degrees Celsius.

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