Answer:
B. air pressure
Explanation:
The definition of pressure is that it is a force applied to an area.
\(P=\frac{F}{A}\)
Because weight is a force (a force is mass multiplied by acceleration, and weight is the product of the mass of an object multiplied by the acceleration of gravity, thus weight is a force), the measurement of the weight of the air over area is the air pressure.
The correct answe is B.
