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Q: Which of the following is one of the basic plant nutrients of fertilizers that are commonly used in agriculture?
  • A. Sodium
  • B. Mercury
  • C. Arsenic
  • D. Potassium
Correct Answer: Option D - Most fertilizers that are commonly used in agriculture contain the three basic plant nutrients; nitrogen, phosphorus and potassium. Plants need nutrients to grow which they absorb from the soil via the plant's root system.
D. Most fertilizers that are commonly used in agriculture contain the three basic plant nutrients; nitrogen, phosphorus and potassium. Plants need nutrients to grow which they absorb from the soil via the plant's root system.

Explanations:

Most fertilizers that are commonly used in agriculture contain the three basic plant nutrients; nitrogen, phosphorus and potassium. Plants need nutrients to grow which they absorb from the soil via the plant's root system.