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  4. Water held tightly by soil particles as a thin film over their surface is

Q. Water held tightly by soil particles as a thin film over their surface is

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Solution:

Soil Water : Soil water is of four types
1. Chemically combined w ater or crystalline water: Chemicaly combined water present within soil particle.
2. Hygroscopic water: Water molecules held tightly in form of thin sheet around soil particle, is hygroscopic water.
3. Capillary water: Capillary water is present within the intercellular spaces of soil particle.
4. Gravitational water or free water: Water which flows down due to force of gravity is called gravitational water/free water.