Why is water essential for plants?

Definitions / Explanation :
$(1)$ Cohesion force
$(2)$ Adhesion force

If you are provided with two tubes ($A$ and $B$),where one is narrow and the other is relatively wider,and if both are immersed in a beaker containing water as shown in the figure. Why does $B$ show higher water rise than $A$?

Why do aquatic animals not experience mechanical shocks?

Which one of the following does not help in molecule transport?

In the symplast pathway of water movement,water passes from cell to cell,whose cytoplasm are connected through: