Q. Which one of the following is not an essential mineral element for plants while the remaining three are?
A) Cadmium
B) Phosphorus
C) Iron
D) Manganese
Explanation
[Solution from source] Cadmium is a toxic heavy metal and not an essential element for plants. Phosphorus is a macronutrient, while iron and manganese are essential micronutrients. Answer (1).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.