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from GIIS,
Subject :NSO    Class : Class 3

Which of the following activities will help to reduce friction?

ATiling a floor
BPutting oil on the hinges of garage gate
CApplying powder on carrom board
DAll of these


Ans 1:

from GIIS,
Class : Class 4

Ans 2:

Kashika Goel from DPS Noida, Noida
Class : Class 7
option D all of these is correct

Ans 3:

from GIIS,
Class : Class 4

Ans 4:

from GIIS,
Class : Class 4

Ans 5:

from GIIS,
Class : Class 4

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