Question

6. The horn blew loudly. T
7. He killed the tiger. T
8. The moon shines dimly. IN
9. The plants grew in the greenhouse.
10. Birds fly in the air.​

Answer 1

Answer:

Tooth decay occurs at an acidic pH around 5 or below. The microorganisms of the mouth converts sugars into acids, resulting in decrease of the pH of the saliva. In the presence of these acids, the enamel of the teeth is degraded, and it leads to tooth decay.

Explanation:

Answer 2

Answer:

Cavities are permanently damaged areas in the hard surface of your teeth that develop into tiny openings or holes. Cavities, also called tooth decay or caries, are caused by a combination of factors, including bacteria in your mouth, frequent snacking, sipping sugary drinks and not cleaning your teeth well.

Explanation:

plz mark my answer as the brainliest answer