The force of tension cohesion exceeds root pressure on a

Which of the following theories is primarily proposed to explain the upward movement of water from roots to the shoot?

The most widely accepted explanation for the ascent of sap in trees is:

Which of the following contributes most to the transport of water from the ground to the leaves of a tall tree? Or,the factor or process which best explains the rise of water from roots to the top of a tall tree is:

According to one vital force theory,the ascent of sap is due to the active pulsation of the innermost layer of the cortex. This theory was proposed by:

Which two statements are wrong for transpiration pull theory?
$(i)$ There is a continuous network of water channels from the root hairs to the tips of the leaves.
$(ii)$ Due to adhesive force between molecules of water,the water column has a great tensile strength.
$(iii)$ There is a cohesive force between the wall of the xylem vessels and water.
$(iv)$ Transpiration pull is strong enough to pull up the column of water to a great height.