Question

1. Air is regarded as a mixture because: A) Its pressure may very b) Its temperature may change C) Its volume changes under different conditions D) Its composition may vary​

Answer 1

D) it's composition may vary

Air typically constitutes of many different constituents such as many gases ,oxides of gases , dust particles , pollution , smoke , fog etc .

Answer 2

Answer:

Option D: Its composition may vary​

Explanation:

A mixture is just the mixture of 2 or more compounds not in definite proportions throughout the entire amount.