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वायु-प्रदूषण क्या है ?

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वायु के भौतिक, रासायनिक या जैविक घटकों का वह परिवर्तन जो मानव व उसके लाभदायक जीवों व वस्तुओं पर प्रतिकूल प्रभाव डाले, वायु-प्रदूषण कहलाता है।

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