Which of the following elements is among the nine macronutrients for plants?

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Study for the Grade 9 Environmental Chemistry Test. Use a blend of multiple-choice questions and detailed explanations. Master key concepts and prepare effectively!

Multiple Choice

Which of the following elements is among the nine macronutrients for plants?

Explanation:
Plants need elements to build tissues and carry out life processes. The ones required in larger amounts are called macronutrients. In typical plant nutrition, the macronutrients include carbon, hydrogen, oxygen, nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur. Calcium is among them because it’s needed in relatively larger quantities to support cell wall structure and overall growth. Iron, chlorine, and sodium are needed too, but in much smaller amounts (or only by some plants), so they’re considered micronutrients rather than macronutrients. That’s why calcium is the best answer.

Plants need elements to build tissues and carry out life processes. The ones required in larger amounts are called macronutrients. In typical plant nutrition, the macronutrients include carbon, hydrogen, oxygen, nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur. Calcium is among them because it’s needed in relatively larger quantities to support cell wall structure and overall growth. Iron, chlorine, and sodium are needed too, but in much smaller amounts (or only by some plants), so they’re considered micronutrients rather than macronutrients. That’s why calcium is the best answer.

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