Question

How does the atmospheric pressure change with altitude?

• A. altitude increases, pressure decreases
• B. altitude decreases, pressure decreases
• C. altitude increases, pressure increases
• D. altitude is independent of pressure

Answer 1

The correct option is A altitude increases, pressure 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.

So, as we go up at higher altitude the pressure decreases.