Which statement is correct for root hair?

Choose the incorrect pair.

Choose the correct sequence of regions of the root from the root tip to the base of the root:

Pneumatophores are responsible for a kind of respiration and are mainly present in:

Roots obtain oxygen from air in the soil for respiration. In the absence or deficiency of $O_{2}$,root growth is restricted or completely stopped. How do the plants growing in marsh lands or swamps obtain their $O_{2}$ required for respiration?

What is the specialized tissue with spiral thickenings in the cell wall,capable of absorbing water from the air,called?