Q147
Atmospheric pressure exerted on earth is due to
A.
Gravitational pull
AnswerB.
Rotation of earth
C.
Revolution of earth
D.
Uneven heating of earth
Answer: Option A
Solution
Answer: Option A
Solution:
Atmospheric pressure is caused by the gravitational attraction of the planet on the atmospheric gases above the surface, and is a function of the mass of the planet, the radius of the surface, and the amount and composition of the gases and their vertical distribution in the atmosphere.