Question

data source: united states national oceanic and atmospheric administration/earth system research laboratory, physical sciences division
based on the temperature measurements, which outlined area better fits the definition of an air mass?
area a area b

Explanation:

Step1: Recall air mass definition

An air mass is a large volume of air with relatively uniform temperature and humidity.

Step2: Analyze Area A

Area A shows a relatively uniform blue (cold) temperature range, with little variation in color (temperature) across the outlined region.

Step3: Analyze Area B

Area B has a gradient of orange/red (warm) colors, indicating more temperature variation within the outlined region.

Step4: Compare with definition

Since Area A has more uniform temperature, it better fits the air mass definition.

Answer:

Area A