Question

The water which the soil particles freely adsorb from atmosphere by the physical forces of attraction, and is held by the force of adhesion is known as

Answer 1

Answer : $\textbf{Hygroscopic water}$

explanation : The water which the soil particles freely adsorb from atmosphere by the physical forces of attraction, and is held by the force of adhesion is known as $\textbf{Hygroscopic water}$.

it is also known as $\textbf{adsorbed water}$ it can be determined by placing an oven dried sample of soil in the atmosphere and finding the amount of water adsorbed by it.

the quantity of Hygroscopic water, for a given soil, depends upon the temperature and relative humidity of air and the characteristics of soil particles.