Question

Which of the following are macronutrients ?

• A. Carbon, nitrogen
• B. Oxygen, phosphorus
• C. Potassium, sulphur
• D. All of these

Answer 1

Answer: (D)

All of these

Answer 2

Macroelements (Macronutrients) are those essential elements which are present in easily detectable quantities, $1$-$10$ mg per gram of dry matter. Macroelements are usually involved in the synthesis of organic molecules and development of osmotic potential. They are nine in number ?