Biology
Plants are killed in winter by frost

because respiration ceases at such low temperature
because no photosynthesis takes place at such low temperature
because there is no transpiration
because of desiccation and mechanical damage to the tissues

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Biology
Assertion (A): In human body liver has an important role in fat digestion.Reason (R) : Liver produces two important fat digesting enzymes.Codes

A is false but R is true
Both A and R are individually true and R is the correct explanation of A
A is true R is false
Both A and R are individually true, but R is not the correct explanation of A

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