कारण बताइये की मुँह का pH 5.5 से कम होने पर दांत खराब होन
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Answer:
when we eat or drink , the pH of our moth rapidly decreases to 5.0 that's why our teeth are getting damaged
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1
Answer:
कुछ खाने के वाद हमारे मुह का ph 5 के उपर उठ जाता है
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