The boiling point of water at high altitude is lower because MCQ with Answer and Explanation

The boiling point of water at high altitude is lower because
A. Atmospheric pressure is higher
B. Temperature is lower
C. Atmospheric pressure is lower
D. Gravity is less
Answer: Option C
Solution (By JKSSB Mock Tests)
Boiling occurs when vapour pressure equals atmospheric pressure. At high altitude, atmospheric pressure is lower, so water boils at lower temperature. Pressure cooker increases pressure to raise boiling point for faster cooking.

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