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6. The horn blew loudly. T7. He killed the tiger. T8. The moon shines dimly. IN9. The plants grew in the greenhouse.10. Birds fly in the air. |
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Answer» 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: |
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