Hindi, asked by Faika155, 1 year ago

Smartphone chinta ani chitan

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Answered by Raghav1111111111
0

Official monitoring shows that particulate levels (PM10) in 78 per cent of cities in West Bengal exceed the standards. ... Kolkata is in the grip of rising air pollution: Official ambient air quality monitoring has shown 61 per cent increase in particulate matter in just four years (2010 to 2013).

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