Question

how do bacteria cause tooth decay​

Answer 1

Explanation:

bacteria present in our mouth breakdown the sugar from the food we eat nd decay our teeth.

Answer 2

Answer:

Bacteria are living beings. This means they move, eat, grow, reproduce and discharge waste matter. And, that's how they cause tooth decay in our mouths – by feeding on the sugars in the foods and drinks we consume to grow – then leaving behind the waste, in the form of a biofilm known as dental plaque..