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Why?(a) Machines are oiled from time to time.(b) An object thrown upwards comes down after reaching a point.(c) Powder is sprinkled on a carrom board.(d) The ramp at a railway station has a rough surface.

Answer»

Why?
(a) Machines are oiled from time to time.
(b) An object thrown upwards comes down after reaching a point.
(c) Powder is sprinkled on a carrom board.
(d) The ramp at a railway station has a rough surface.



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