Question

How the smell of perfume or agarbatti does spreads in the whole room?

Answer 1

It is due to the process of diffusion that the perfume spreads in the whole room

Answer 2

♤ In Our nose, an olfactory receptors is present. They detect the smell of incense stick and set off a chemical reaction.

♤ As a result, a nerve impulse is generated which is transmitted to sensory nerve .

♤ The sensory nerve relay the information in the form of nerve impulse to the brain via spinal cord.

♤ The olfactory lobe present in the forebrain interpret the message and we feel the smell of an agarbatti.