Question

$Zn, Mo, Fe, Cu$ are

• A. trace element
• B. non-essential
• C. macro nutrient
• D. none of these

Answer 1

Answer: (A)

trace element

Answer 2

$Zn, Mo, Fe, Cu$ are required by plants in very low amount, so there are called trace elements or microelements. Non-essential elements are not required for metabolic activity of plants, Macro elements are required by plants in high amount, e.g., $C, H, N,$ etc.