Environment & Ecology · Air Pollution & Health
According to the Central Pollution Control Board (CPCB) and WHO, particulate matter of size _____ micrometers or less (PM2.5) causes the greatest harm to human health.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 132.5
- 222.8
- 325.3
- 42.5✓
Correct answer
2.5
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