Q. Which one of the following is not a biofertilizer?

A) Bacillus thuringiensis
B) Azotobacter
C) Azolla
D) Clostridium
Explanation

Bacillus thuringiensis is a bacterium used to produce genetically engineered Bt cotton.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.