Atmospheric pressure is the force (per unit-area) perpendicular to a unit-area of planetary surface, as determined by _________....? Mcqs

Atmospheric pressure is the force (per unit-area) perpendicular to a unit-area of planetary surface, as determined by _________....?

(A) Mass of vertical column of atmospheric gases

(B) Mass of horizontal column of atmospheric gases

(C) Weight of vertical column of atmospheric gases

(D) Mass of vertical and weight of horizontal of atmospheric gases