Question Detail
Question
Which of the following is classified as a macronutrient required by plants?
Correct Answer
Option C is the correct answer.
Detailed Explanation
According to the 'MACRONUTRIENTS' table on page 25, Potassium (K) is listed as a macronutrient. Iron, Boron, and Copper are listed under micronutrients on page 26.
Hint
Macronutrients are needed in relatively larger amounts.