Question

Which of the following elements is not a micronutrient?

a. boron

b. calcium

c. chromium

d. manganese

Short answer

The one which is not a micronutrient is calcium.

Step-by-step solution

Explanation

The macronutrients are the elements or the nutrients required by our body in large amounts like nitrogen, potassium, phosphorous, sulfur, magnesium, and calcium. The micronutrients are the nutrients require in small quantities like iron, manganese, zinc, copper, boron, molybdenum, and chlorine.

Final answer

The correct option is 'b', as calcium is a macronutrient and not a micronutrient.