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What physical factor may affect the fish population in a river?
Wiki User
∙ 12y ago
One physical factor that would affect fish population is the temperature of the water. Fish are generally very sensitive to changes in temperature, and if the water becomes too hot or too cold, it can cause the fish to die or their eggs to not hatch.
Wiki User
∙ 12y ago
Wiki User
∙ 10y agolight pump air
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