What is the optimal $pH$ range for the growth of most plants?

Water-logged condition will quickly occur in which type of soil?

$A$: Chelating agents used in improving the availability of some minerals in soil are actually electron acceptors.
$R$: They increase the solubility of some minerals in acidic soils.

In which one of the following pairs is the specific characteristic of a soil not correctly matched?

Rhizosphere is the region where

The $pH$ of a fertile soil is usually around