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Sourav Jena from ODM public school , BHUBANESWAR

Subject :NSO Class : Class 5

Which pair is correctly matched?

APulley - Escalator
BPulley - Crane
CScrew - Sharpener
DWedge - Jar lid

Ans 1:

Sreyan from NPS Koramangala, BANGALORE

what????????????????????

Sreyan from NPS Koramangala, BANGALORE

A also