Why should we not put a pin or pencil in our ears ?
Because tips of pins and pens have sharp pointed ends which could damage the eardrum or other parts of the ear causing harm to it. As a result hearing loss is possible.
(a) What type of pollution is caused by the working of mixer and grinder in the kitchen?
(b) Why should we not put a pin or pencil in our ears?
Why should we not use sharp, pointed objects to clean our ears?