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Question
Which particles are responsible for causing the greatest harm to human health?
Options
Particulates with size 1.00 micrometre in diameter
Particulates with size of 10 mm or more.
Particulates with size lesser than 2.5 micrometres.
Particulates with size more than 100 micrometres.
MCQ
Solution
Particulates with size lesser than 2.5 micrometres.
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