Define and explain the concept of density as a property of matter

answer; i believe the correct answer is (c) /// is a homogeneous mixture of gaseous substance nitrogen,oxygen and smaller amounts of other substancesmixtures can be either ( homogeneous or heterogeneous)plz check first good luck

it's filtration, but this is an assumption so my apologies if i got this

ok whats the question if not i cannot you i need question and need a thing to answer