In the study of pollution, SPM refers to :

(a) Sulphur Phosphorus Matter
(b) Sulphur Particulate Matter
(c) Solid Particulate Matter
(d) Suspended Particulate Matter

Anurag Mishra Professor Asked on 12th January 2016 in Science.
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    Answer:  (d) Suspended Particulate Matter 

    Anurag Mishra Professor Answered on 13th January 2016.
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