Question

Question 4
How do we detect the smell of an agarbatti (incense stick)?

Answer 1

When the smell of the incense stick reaches our nose, the olfactory receptors present there detects it and sends this information to the fore brain in the form of electrical signals. The fore brain interprets this information as the smell of an incense stick after it retrieves the data on the range of fragrances pre-stored from the cerebrum.