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Q. |
Air Quality Index is - |
A. | an air pollutant measuring machine |
B. | a measuring scale to show quality of air |
C. | used for measuring humidity level |
D. | used for forecasting rain |
Answer» B. 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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