Biotechnology
Quick practice
Question 1 of 5
Due to which the ground layers on the teeth persist -
A
Food particles, sputum, mucus and bacteria
B
Food particles and sputum
C
Only by food particles
D
Food particles, sputum and oral acids
Get unlimited practice with Odisha State Exams subscription
Boost your performance with adaptive practice tests
Practice every concept in the syllabus
Compare your speed and accuracy with your peers
Download the app and practice on the go