Question

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Answer 1

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Note:Dry cobalt chloride paper that is blue in colour turns pink when it comes in contact with water. Using this property of cobalt chloride paper we can study the rate of transpiration from the two surfaces of a leaf by comparing the loss of water vapour from the two surfaces of the leaf.

Answer 2

Answer:

1 red

2 20hours

3 up side

Explanation:

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