Question

the mass unit volume of a substance is called entity packet density is equal to mass / volume bracket arrange the following in order of increasing density air exhaust from chimneys honey water chalk cotton and iron

Answer 1

 Arrangement of the above matters in order of increasing density
Air<exhaust from chimney<cotton<water<honey<chalk<Iron

Answer 2

Air, water, exhaust from chimneys, chalk, cotton, honey, iron.