Multiple choice

Which of the following is not a major element?

  1. Zn

  2. Ca

  3. Mg

  4. P

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Major elements (macronutrients) include C, H, O, N, P, K, S, Ca, and Mg. Zinc (Zn) is a micronutrient required by plants in very small quantities.