short not on root pressure
ddaydevil:
it is given in class 10 ncert
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When transpiration is high, xylem sap is usually under tension, rather than under pressure, due to transpirational pull. ... Water then diffuses from the soil into theroot xylem due to osmosis. Root pressure is caused by this accumulation of water in the xylem pushing on the rigid cells.
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node is answer it is the knot which present on roots
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