Question

(Put an unlit incense stick in a corner
of your class. How close do you have to
go near it so as to get its smell?
Now light the incense stick. What
happens? Do you get the smell sitting
at a distance?
Record your observations,​

Answer 1

Answer:

we will smell fragrance

Explanation:

because of diffusion

Answer 2

Answer:

when unlit the smell doesnt spread .

Explanation:

when lit a chemical energy is given out causing the fragrancre to spread