Question

Why is air sometimes considered as a heterogeneous mixture?

Answer 1

Air is considered to be a hetrogeneous mixture as the composition of air at different places is different.
Eg; If i go to a hill Station, the 'air' is purer than in the cities, which is more 'polluted'. These both refer to the pollution levels, and indirectly refer to the composition of air

Answer 2

Answer: because air is sometimes in water or in any other way it is not Homogeneous it is heterogeneous.it consists of more than one phase..

Explanation: please mark me as brainliest