Select the correct statements
$I$. From the region of elongation, some of the epidermal cells from root hairs.
$II$. Pneumatophores are seen in Rhizophora.
$III$. Adventitious roots are seen in the banyan tree.
$IV$. Maize and sugarcane have prop roots.
$I$ and $IV$
$I$, $III$ and $IV$
$III$ and $IV$
$II$ and $III$
Pneumatophores or breathing roots occur in
$A$ : Epiphyllous roots arise from the margins of leaf lamina.
$R$ : Epiphyllous roots help in vegetative reproduction.
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 $\mathrm{O}_{2}$ required for root respiration?
Explain about Regions of The Root with diagram.