It is a solution of several gasses, the most abundant of which are nitrogen and oxygen.
No it is a solution
It is a heterogeneous mixture.
Sulphur is an element. It is neither compound nor mixture.
Soil is a heterogeneous mixture.
compound
No it is a solution
Heterogeneous mixture.
It is a heterogeneous mixture.
It is a heterogeneous mixture.
It is a heterogeneous mixture.
It is a heterogeneous mixture.
Aluminium is an element . it is not compound or mixture.
It is a heterogeneous mixture.
mixture
element
It is a heterogeneous mixture.
Heterogeneous