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

Which force is generated between water molecules and the walls of the xylem vessels?

Water is the best transporting medium in plants for dissolved minerals and food molecules. Choose the correct option considering the following properties of water:
$i$. Water is in liquid form at room temperature.
$ii$. Water is the best solvent for most of the solutes.
$iii$. In pure form,its $pH$ is neutral.
$iv$. It is the most active inorganic compound.

In which form$(s)$ does water exist in nature?

The term $apoplast$ signifies

Diffusion is a ..................... process and is not dependent on .....................