Animal Kingdom Question 424
One direct use of geothermal energy to farmers is [MP PMT 1986]
Options:
A) Allowing sunlight to pass in upper layers of soil
B) Enrichment of soil by nephridial excretions
C) Removal of dead leaves
D) Killing of some harmful insects
Show Answer
Answer:
Correct Answer: B
Solution:
Earthworms are ?friends of farmers? because they enrich the soil by castings.
BETA
