Question

Fill in blanks.
Atmosphere pressure _________ with increase in altitude

• A. increases
• B. decreases
• C. remains same
• D. cannot be determined

Answer 1

The correct option is B decreases

Pressure with Height: pressure decreases with increasing altitude. The pressure at any level in the atmosphere may be interpreted as the total weight of the air above a unit area at any elevation. At higher elevations, there are fewer air molecules above a given surface than a similar surface at lower levels. For example, there are fewer molecules above the 50 km surface that are found above the 12 km surface, which is why the pressure is less at 50 km.

Hence, Atmosphere pressure decrease with an increase in altitude