A tree girdled upto xylem may survive for some time but ultimately dies because
a-water does not move upwards
b-sugar does not move upwards
c-sugar does not move downwards
d-water does not move downwards
which one is correct?

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Solution

Because sugars does not move downwards.
Sugars are produced by the leaves and then transferred to the other parts through phloem, but if phloem is not there then sugars are not able to reach lower part of the plant and plant dies after some time.

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