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Conservation of Resources and Pollution — BIOLOGY STD 8 — Question

ICSE BoardEnglish MediumSTD 8BIOLOGYConservation of Resources and Pollution1 Mark
Question
What do you mean by $\text{SPM}$ ?
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Answer

Minute solid particles suspended in air are known as suspended particulate matter or $\text{SPM}$. $\text{SPM}$ are unburnt carbon particles during burning of fuels, exhaust of vehicles and soon. They also cause air pollution.

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