Question

Consider the following statements and identify the right ones :-
i) Air pressure decreases when air descends.
ii) Air pressure at sea level is lower than at the mountain top.

• A. i only
• B. ii only
• C. Both
• D. None

Answer 1

Answer: (D)

None

Air pressure increases when air descends. Lower pressure at higher altitudes cause the temperature to be colder on top of a mountain than at sea level. As air rises, the pressure decreases. It is this lower pressure at higher altitudes that causes the temperature to be colder on top of a mountain than at sea level.