Which of the following methods may be used to | vedclass

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(A) The $Cobalt$ $chloride$ $paper$ $method$ is used to compare the rate of transpiration from the two surfaces of a leaf. When $Cobalt$ $chloride$ pa

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Cobalt chloride paper method

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(A) The $Cobalt$ $chloride$ $paper$ $method$ is used to compare the rate of transpiration from the two surfaces of a leaf. When $Cobalt$ $chloride$ paper is placed on the upper and lower surfaces of a dorsi-ventral leaf,it turns from blue to pink due to the absorption of water vapor. The rate of color change indicates the relative amount of water loss (transpiration) from each surface.

Which of the following methods may be used to determine the quantitative loss of water from two surfaces of a dorsi-ventral leaf?

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