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The diagram shows fish kills linked to harmful algal blooms (HABs).

Based on the lettered locations of fish kills, which of the following is FALSE regarding HABs?

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HABs are problematic because they often contaminate the drinking water supplies of large cities near letter B.


HABs are most often found near deltas where rivers containing agricultural runoff empty into the sea, such as location B.


HABs can release toxins that can be accumulated in shellfish and which have killed southern sea otters near location A.


Harmful algal blooms tend to have a negative economic impact on fisheries at locations such as B and D.


When harmful algae die, the biological oxygen demand increases due to the aerobic bacteria that are involved in their decomposition. This leads to loss of dissolved oxygen in coastal areas such as location E.

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