Assertion A The boiling point of water decreases as the altitude increases Reason R The atmospheric ......

Assertion (A) : The boiling point of water decreases as the altitude increases.
Reason (R) : The atmospheric pressure increases with altitude.

A is true but R is false

-At higher elevations, there are fewer air molecules above a given surface than a similar surface at lower levels. Since most of the atmosphere's molecules are held close to the earth's surface by the force of gravity, air pressure decreases and rapidly at first, then more slowly at higher levels.

By: Abhipedia