Question

32. Which of the following describes
about plaque?
(A) It is hard, protective covering on the
tooth.
(B) It is soft covering of the tooth which
is present below the visible part.
O
(C) It is the cavity which contains nerves
and blood vessels in a tooth.
O
(D) It is sticky film of food and bacteria
nearthe gums.​

Answer 1

Answer:

1 ,3 and 4

It is hard, protective covering on the

tooth

) It is the cavity which contains nerves

and blood vessels in a tooth.

O

(D) It is sticky film of food and bacteria

nearthe gums.