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

Bulk flow of water occurs through

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.

Differentiate between the following:
Apoplast and Symplast pathways of movement of water in plants.

Which property of water prevents the water in lakes or oceans from freezing completely?

The term 'outer space' represents ...$A$...,while 'inner space' represents ...$B$... with reference to absorption of minerals. Identify $A$ and $B$ to complete the given statement.