Q. Which of them is not an extrinsic factor?
A) Light, $O_{2}$
B) Temperature, $CO_{2}$
C) Nutrient, water
D) Growth regulator and genetic factor
Explanation
The correct answer is Option C: Nutrient, water.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.