Biology 0610 · IGCSE · Diseases and immunity

Diseases and immunity — practice question

The graph illustrates how pH in the mouth changes after eating. Why is it advisable to brush your teeth after eating?

  • AAcidic conditions help bacteria to grow.
  • BAcids dissolve tooth enamel.
  • CAlkaline conditions help bacteria to grow.
  • DAlkalis dissolve tooth enamel.

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