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 Class 8 Science revision questions and answers on properties of soil

A group of pupils wanted to compare the rate at which water rises up in soils. They set up their apparatus as shown in the diagram below.
figsoil4720201122.JPG
From the results obtained by the pupils the correct
conclusion could not be made because pupils
A. Placed both tubes in the same basin.
B. Used identical biro tubes
C. Used equal amounts of soil in the biro tubes
D. Used same type of soil

 (2m 50s)
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