Question

explain why the answer is option (c)​

Answer 1

Answer:

Explanation:

(pascal = Newton per square metre) As we go to a higher altitude on Earth, the weight of air above it decreases, so the pressure will also be lesser. So atmospheric pressure decreases with increasing elevation

Answer 2

Hey there,

we know -

The STP refers to nominal conditions in the atmosphere at sea level, which supports 760mm in a mercurial barometer (760 mm Hg).

[Hg = mercury, in case you don't know]

so :

760mm = 760/10 cm = 76cm

Thus, your answer is (C) 76cm tall column of mercury.

HOPE THIS HELPS

THANKS