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While the effect of root pressure in transport of water is more important at night, Transpiration is important during the day when the stomata are open. Thus, transpiration pull becomes the major driving force in the movement of water in the xylem during daytime. Hence, option D is correct.
If the weight of K and L are 45 Kg and 30 Kg respectively then how many persons are heavier than K?
H is taller than I. J is taller than K but shorter than L. I is shorter than K and K is taller than H. Who is the tallest person?
What is the weight of T?
How Many Persons are heavier than person A?