The seventieth element included in the list of essential nutrient element is:__________?
Correct answer: D. Nickle
- A. Vanadium
- B. Cobalt
- C. Sodium
- D. Nickle
Explanation
Nickel was recognized as the seventeenth essential plant nutrient, so “seventieth” is a typographical error for “seventeenth.” The other listed elements are beneficial or essential only for particular plants, not universally essential.
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