Plasmolysis can be used for

Good growth of plants

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Good growth of weeds

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Killing the weeds

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None of the above

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Solution

The correct option is C Killing the weeds
Plasmolysis is lysis of living substance protoplasm. It results from loss of water from a cell and is characterised by shrinking of protoplasm. Weeds can be controlled by plasmolysis by making the soil hypertonic as compared to cell sap. However, it will also make absorption of water difficult for crop plants. Thus, the correct answer is option C.

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