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वायु गुणवत्ता सूचकांक ______ (A)वायु प्रदूषण मापने वाला एक उपकरण है (B)एक संख्या है (C)आर्द्रता स्तर मापने के लिए प्रयुक्त होता है (D)वर्षा का अनुमान लगाने के लिए प्रयोग किया जाता है

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वायु गुणवत्ता सूचकांक ______ (A)वायु प्रदूषण मापने वाला एक उपकरण है (B)एक संख्या है (C)आर्द्रता स्तर मापने के लिए प्रयुक्त होता है (D)वर्षा का अनुमान लगाने के लिए प्रयोग किया जाता है






 
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