Science Class 9 Improvement in Food Resources

Asked by GIANSH GUPTA KHUNDKER · BIRLA BRAINIACS

Which of the following is a macronutrient required by plants?

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Answer: B. Nitrogen

Nitrogen is a macronutrient because plants require it in large quantities. Helium is not a plant nutrient, while boron and zinc are micronutrients needed in small amounts.

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