The danger posed to fish in an aquarium by an overpopulation of bacteria caused by an algal bloom is most likely a
A B C D
decrease in water temperature. reduction in oxygen levels. decrease in food supply. removal of minerals.
Question: The danger posed to fish in an aquarium by an overpopulation of bacteria caused by an algal bloom is most likely a
(A) decrease in water temperature.
(B) reduction in oxygen levels.
(C) decrease in food supply.
(D) removal of minerals.

Answer: (B) reduction in oxygen levels.
Answer: (C) decrease in food supply.
Question: The danger posed to fish in an aquarium by an overpopulation of bacteria caused by an algal bloom is most likely a
(A) decrease in water temperature.
(B) reduction in oxygen levels.
(C) decrease in food supply.
(D) removal of minerals.
Answer: (B) reduction in oxygen levels.