Plants are killed by frost in winter because

there is desiccation and mechanical damage of tissue.

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there is no transpiration at such a low temperature.

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there is no respiration at such a low temperature.

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there is no photosynthesis at such a low temperature.

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Solution

The correct option is A there is desiccation and mechanical damage of tissue.
Plants are killed in frost due to desiccation and mechanical damage. Roots are unable to take up water and plants die from lack of moisture.

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