Which one of the following elements is the critical limiting factors in the function of ecosphere because of its irretrievable loss in the ocear:
Correct answer: B. P
- A. Fe
- B. P
- C. Mg
- D. Ca
Explanation
Phosphorus can be carried into ocean sediments and become unavailable for rapid biological recycling, making it a critical limiting nutrient. Iron, magnesium and calcium are not the standard answer for this irretrievable oceanic loss.
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