What do understand by Air Quality? What steps can the government take to improve the air quality?

What do understand by Air Quality? What steps can the government take to improve the air quality? (GS 1)

वायु गुणवत्ता से आप क्या समझते हैं? सरकार क्या कदम उठा सकती है हवा की गुणवत्ता में सुधार करने के लिए?

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