Question

The non–mineral elements are

• A. C, H, O
• B. N, Ca, Mg
• C. Fe, Co, Mn
• D. Cu, Mo, N

Answer 1

The correct option is A C, H, O

The plant requires many essential elements for normal growth and development. These are called essential elements. Mineral elements are those elements that plant absorbs from the soil. The essential mineral elements include nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, boron, chlorine, iron, manganese, zinc, copper, molybdenum, and nickel. The essential non-mineral elements include oxygen, hydrogen, and carbon.
Thus, the correct answer is option a.