The double-layered Khadi mask developed by Khadi and Village Industrie – McqOptions

MCQOPTIONS

1.	The double-layered Khadi mask developed by Khadi and Village Industries Commission helps retain ________ per cent of the moisture content inside while providing easy passage for the air to pass through.
A.	50
B.	60
C.	70
D.	80
E.	90
Answer» D. 80

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