In terms of density and humidity, which conditions characterize a high-pressure area?

A.
low density, low humidity

B.
high density, high humidity

C.
high density, low humidity**

D.
low density, high humidity

The correct answer is C. High density, low humidity characterize a high-pressure area. To understand why, let's break it down:

Density refers to the concentration of air molecules in a given volume. In a high-pressure area, the air is more compressed, resulting in a higher density. On the other hand, in a low-pressure area, the air is less compressed, leading to lower density.

Humidity, on the other hand, refers to the amount of moisture present in the air. In a high-pressure area, the air tends to be drier, meaning it has low humidity. Conversely, in a low-pressure area, the air tends to be more humid, resulting in high humidity.

To summarize, high-pressure areas are characterized by high density (due to air compression) and low humidity (due to drier air). Therefore, the correct answer is C. high density, low humidity.