Question
Statement I: Policemen regulating traffic at a crowded crossing often wear a mask.
Statement II: Mask filters carbon dioxide and sends pure oxygen inside.
Statement II: Mask filters carbon dioxide and sends pure oxygen inside.
Answer: Option C
:
C
The air at a crowded crossing is generally very polluted. The mask over policemen's nose filters dust from the air but it is not meant to filter carbon dioxide.
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:
C
The air at a crowded crossing is generally very polluted. The mask over policemen's nose filters dust from the air but it is not meant to filter carbon dioxide.
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