Multiple choice general knowledge

6] SPM stands for

  1. Suspended Particulate Matter

  2. Standard Particles Material

  3. Suspended Particles Material

  4. None of the above
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A Correct answer
Explanation

SPM stands for Suspended Particulate Matter, also called particulate matter (PM). These are tiny solid or liquid particles suspended in air, like dust, soot, and smoke. They're a key air quality indicator and health hazard.

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