AP Environmental Science MCQ AP Environmental Science Chapter 3 Small inputs of this substance, commonly a limiting factor in aquatic ecosystems, can result in algal blooms and dead zones.

Small inputs of this substance, commonly a limiting factor in aquatic ecosystems, can result in algal blooms and dead zones.

Naim 01:51 AP Environmental Science Chapter 3

Small inputs of this substance, commonly a limiting factor in aquatic ecosystems, can result in algal blooms and dead zones.

A. dissolved oxygen

B. dissolved carbon dioxide

C. sulfur

D. phosphorous

E. potassium

Answer: D

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