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Subjects
Science State Board
Class 8
Force and presssure
Textboook questions
22.
Answer in detail IV
Exercise condition:
4
m.
Explain how friction can be minimized.
Answer variants:
Lead shots
Powder
Waves
Grease
Ball bearing
a.
Carrom-
b
. Machine parts-
c
. Cycle hub-
d
. Ball bearing-
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