Odisha BSE HSC Env & Pop Ed Practice Questions - Environment And Population Education (SEP) - Odisha BSE High School Certificate (Class 10) Exam

Particulate matter (PM) such as PM2.5 is dangerous mainly because:

Fine particles can enter deep into the lungs and even the bloodstream Particles always make air healthier to breathe Particles only exist on the Moon Particles never affect human health

Correct Answer:

Fine particles can enter deep into the lungs and even the bloodstream

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