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state and explain four precautions to be considered during the setup of the investigation on whether roots exert a pushing force strong enough to cause water to move up the stem of plants

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The plant should be de-topped at least 4 cm above the surface of the soil.
The stump of the plant is tightly fitted with the apparatus.
Tube is filled with water, not completely but at least one-fourth
Remember to note the initial water level.
Note the final water level and draw interference by calculating the difference between two levels.



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