Fertilizer labeled 20-10-20 contains:

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Multiple Choice

Fertilizer labeled 20-10-20 contains:

Explanation:
Reading fertilizer labels uses the N-P-K convention. The three numbers show the percentage by weight of nitrogen, phosphorus (expressed as P2O5), and potassium (expressed as K2O) in that order. So a 20-10-20 formulation contains 20% nitrogen, 10% phosphorus as P2O5, and 20% potassium as K2O. This means nitrogen and potassium are high, while phosphorus is moderate. The other options would mix up which nutrient is in the middle or change the amounts, which doesn’t match the N-P-K order.

Reading fertilizer labels uses the N-P-K convention. The three numbers show the percentage by weight of nitrogen, phosphorus (expressed as P2O5), and potassium (expressed as K2O) in that order. So a 20-10-20 formulation contains 20% nitrogen, 10% phosphorus as P2O5, and 20% potassium as K2O. This means nitrogen and potassium are high, while phosphorus is moderate. The other options would mix up which nutrient is in the middle or change the amounts, which doesn’t match the N-P-K order.

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