Computer · Environmental Engineering
पेयजल में फ्लोराइड का स्तर कितने से कम होने पर बच्चों में दंत क्षय (Dental caries) देखा जाता है?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 15.0 mg/L से अधिक
- 23.0 mg/L से 5.0 mg/L के बीच
- 31.5 mg/L से 2.0 mg/L के बीच
- 41.0 mg/L से कम✓
सही उत्तर देखें
1.0 mg/L से कम
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