Essential Chemistry for IGCSE - The Chemical Industry (Section 5 - No. 19)
What are the main elements that plants need for healthy growth?
Nitrogen, phosphorus, and potassium
Carbon, hydrogen, and oxygen
Calcium, iron, and magnesium
Sulfur, chlorine, and sodium
Explanation
The text explicitly mentions nitrogen, phosphorus, and potassium as essential elements for plant growth.
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