Toothpaste prevents tooth decay by:
- A. neutralizing the excess acidity. ✓
- B. means of emulsification.
- C. the action of fluoride.
- D. making a coat of calcium over the teeth surface.
Correct Answer: A. neutralizing the excess acidity.
Explanation
Toothpaste is generally basic in nature. It helps to prevent tooth decay by neutralizing the acidic environment produced by bacteria in the mouth.
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