Air Quality Index is - (1) an air pollutant measuring machine (2) a measuring scale to show quality of air (3) used for measuring humidity level (4) used for forecasting rain

1 Answer

Answer :

(2) a measuring scale to show quality of air Explanation: The AQI is an index for reporting daily air quality. It tells us how clean or polluted our air is, and what associated health effects might be a concern for us.

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