Final answer:
The correct answer is B) Pressure gradient. The difference in pressure between the top and bottom of a column of gas is calculated as the pressure gradient. In the context of a column of gas, the pressure gradient represents how the pressure changes as you move from the top to the bottom of the column.
Step-by-step explanation:
The correct answer is B) Pressure gradient. Pressure gradient refers to the change in pressure per unit distance. It is calculated as the difference in pressure between two points divided by the distance between them. In the context of a column of gas, the pressure gradient represents how the pressure changes as you move from the top to the bottom of the column.
The correct answer is B) Pressure gradient. The difference in pressure between the top and bottom of a column of gas is calculated as the pressure gradient. In the context of a column of gas, the pressure gradient represents how the pressure changes as you move from the top to the bottom of the column.