Question

__________ is often a limiting nutrient for many organisms, especially plants. A. Carbon B. Nitrogen C. Sulfur D. Phosphorus

Answer 1

D. phosphorus.

Phosphorus is often the limiting nutrient, or nutrient that is most scarce and thus limits growth, in aquatic ecosystems. When nitrogen and phosphorus from fertilizer are carried in runoff to lakes and oceans, they can cause eutrophication, the overgrowth of algae.