What term describes a large body of air with nearly uniform temperature, humidity, and density?

What term describes a large body of air with nearly uniform temperature, humidity, and density?

• A. Circulation Cell
• B. Air Mass
• C. Climate
• D. Weather Front

Answer: (B)

Air mass refers to a large body of air that has nearly uniform temperature, humidity, and density across a wide horizontal area. It forms when air sits over a particular surface long enough to acquire those characteristics, so the properties stay similar as the mass moves. This uniformity is what distinguishes an air mass from other atmospheric concepts. A circulation cell is a pattern of winds, climate means long-term regional weather patterns, and a weather front is the boundary between different air masses.

Air mass refers to a large body of air that has nearly uniform temperature, humidity, and density across a wide horizontal area. It forms when air sits over a particular surface long enough to acquire those characteristics, so the properties stay similar as the mass moves. This uniformity is what distinguishes an air mass from other atmospheric concepts. A circulation cell is a pattern of winds, climate means long-term regional weather patterns, and a weather front is the boundary between different air masses.