Biology · Environmental Health
कई महामारी विज्ञान (epidemiological) अध्ययनों के अनुसार, कठोर जल (hard water) का उपयोग करने वाले समुदायों में क्या संबंध देखा गया है?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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सही उत्तर देखें
हृदय रोग (cardiovascular disease) से मृत्यु दर में कमी
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