Assertion (A): The boiling point of water decreases as altitude increases. Reason (R): Atmospheric pressure increases with altitude. Which is correct?

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1. Assertion (A): The boiling point of water decreases as altitude increases. Reason (R): Atmospheric pressure increases with altitude. Which is correct?

Both A and R are true, and R correctly explains A

Both A and R are true, but R does not correctly explain A

A is true, but R is false

A is false, but R is true

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Assertion A is correct — boiling point does fall with altitude. But Reason R is false: atmospheric pressure actually decreases, not increases, as altitude rises, which is the real cause of A.