Due to which property of water does the water in lakes or oceans not freeze completely?

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.

The cell wall is permeable and not a semipermeable structure; this can be best deduced from the passage of water and mineral salts from:

How would you differentiate between apoplast and symplast?

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

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.