Q. How many species of $Pheretima$ are found all over the world?
A) 200
B) 300
C) 400
D) 500
Explanation
There are about 500 species of the earthworms all over the world
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.