The upward movement of water normally requires a pump in our houses but in tall trees, water rises up without any external support. Explain this mechanism.
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Answer: yes , its true that pulling anything up requires a force which in our homes is provided through motors but in tall trees it is generated by ascent of sap.
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Answer:
If there is sufficient water supply, water is lost from the aerial part of the plant (such as leaves), creating a suction that pulls the column of water upwards. Thus, by these two mechanisms, water is transported through the tree without external support.
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