Question

1. The mass per unit volume of a
substance is called density.
(density
mass/volume).
Arrange the following in order of
increasing density - air, exhaust
from chimneys, honey, water,
chalk, cotton and iron.​

Answer 1

exhaust from chimneys, air, water, cotton ,chalk and iron

exhaust exhaust has low density because it is warm air and have less density due to greater volume

since iron solid and also very rigid so it hidger density

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Answer 2

Answer:

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