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T2 CH4 Air — Science STD 6 — Question

Tamilnadu BoardEnglish MediumSTD 6ScienceT2 CH4 Air2 Marks
Question
Why do traffic assistants wear a mask on duty?
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Answer

Traffic assistants are continually exposed to smoke emitted out from the vehicles. Inhaling the pollutants in the smoke may cause breathing and lung problems. So they wear a mask on duty.

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