Permanent wilting percentage is that amount of water in the soil at which:

If two solutions have the same osmolarity,they are said to be

Choose the correct statement regarding Casparian strips:
$I$. It surrounds the pericycle.
$II$. It is made up of lignosuberin.
$III$. It limits the pathway available to water solutes,forcing them to enter the symplast.

$A$: Water has a very low specific heat and latent heat.
$R$: There is high cohesive force between water molecules.

An area of soil is thoroughly wetted and allowed to drain until capillary movement of water stops. The water content of the soil at this stage provides an estimate of its:

Select the correct statement from the following: