Total biomass of earthworm in soil ranges from (kg/ha)

A. 10 - 110

B. 110 - 1100

C. 210 - 2200

D. 20 - 220

Answer: Option B

Solution(By Examveda Team)

Earthworms increase nutrient availability, better drainage, and more stable soil structure, these excrete wastes in form of casts, a type of soil aggregate.
The enhancement of the number of earthworms and their biomass consequently affect soil fertility. The total biomass of earthworms in soil ranges from 110 - 1100 kilometer per hector.