Question

The mass per unit voleum of a substance is called denisty ( density=mass/voleum).Arrange the following in order of increasing density- air,exhanst from chimneys,honey, water,chalk ,cotton and iron

Answer 1

Exhaust from chimneys < Air < Cotton < Water < Honey < Chalk < Iron

Answer 2

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