What value of pH in the mouth leads to tooth decay ? Why ?

What is tooth decay ?

ONE WORD ANSWER QUESTION What are the major causes of tooth decay ?

Is the pH changes tooth decay? Explain.

MULTIPLE CHOICE QUESTION What are the material required for the activity " You know the process of tooth decay"?

When does tooth decay start in our mouth ?

What is a pH scale ?

pH value of Lemon juice is

Assertion (A) : Tooth decay starts when the pH of the mouth is lower than 5.5. Reason : Bacteria present in mouth produce bases.

What is the special structure present in the mouth of the organism?

The pH value of Alkaline soil is