Q617
Total biomass of earthworm in soil ranges from (kg/ha)
A.
10 - 110
B.
110 - 1100
AnswerC.
210 - 2200
D.
20 - 220
Answer: Option B
Solution
Answer: Option B
Solution:
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.