1. What is the size range of respirable suspended particulate matter? a) Less than 1 micrometre b) Less than 10 micrometre c) Less than 100 micrometre d) Less than 0.1 micrometre AnswerAnswer: b [Reason:] Particulate matter of size less than 10 micrometre, fall under the category of suspended particulate matter. 2. Air-borne particulates are classified…