1. What is an air mass?

1.
a large body of air with the same temperature and moisture.
2.
any kind of cloud that produces rain, sleet, snow, or hail.
3.
a place where weather always changes in an extreme way.

a large body of air with the same temperature and moisture.

answer: option (b) is the correct answer.

explanation:

intensive property is the physical property which does not depend on the size of system or amount of material present in system.

for example, color, density, melting point, boiling point etc are all intensive properties.

thus, we can conclude that the boiling point and color of a substance are both examples of intensive properties because they do not depend on the amount of matter in the sample.