The hygroscopic water is retained in soil at

A. 15 bar

B. 31 bar

C. 0.3 bar

D. 0.1 bar

Answer: Option B

Solution(By Examveda Team)

Hygroscopic water is the water that is absorbed by moisture from the air. It forms an extremely thin tightly held film around the soil particles by surface forces.
The hygroscopic water is not available for plants and it can be retained in the soil at 31 bar.