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Question

Which of the following is/are non-viable particulate matter?

A
Smoke
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B
Bacteria
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C
Dust
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D
Fumes
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Solution

The correct option is D Fumes
Non-viable Particulates:
They are formed either by the breakdown of large materials or by the condensation of minutes particles and droplets.
1. Smoke: burning fossil fuel, dry leaves
2. Mists: Spray by liquid and condensation of vapours by air
3. Dust: Fine solid particlesgreater than 1 micrometer in diameter
4. Fumes: condensation of vapours duringchemical reactions.


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