निम्नलिखित में से कौन सा व� – McqOptions

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1.	निम्नलिखित में से कौन सा वायुप्रदूषक मनुष्य में रक्तदाब को बढ़ा देता है तथा ह्रदय संबंधी रोग पैदा करता है -
A.	पारा
B.	सीसा
C.	कैडमियम
D.	तांबा
Answer» D. तांबा

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