Which two properties define an air mass?

An air mass is defined by two main properties:

1. Temperature: This refers to the degree or intensity of heat present in the air mass. It is determined by the area over which the air mass forms. For example, an air mass that forms over a cold region will be cold, while an air mass that forms over a warm region will be warm.

2. Moisture Content: This refers to the amount of water vapor present in the air mass. Like temperature, it is also determined by the area over which the air mass forms. For instance, an air mass that forms over the ocean will have high moisture content, while an air mass that forms over a desert will have low moisture content.