BI-1914
Energy losses in food chains
Biology · Secondary 4 · Easy · Energy losses in food chains
In a lake affected by eutrophication, fertiliser runoff causes a rapid growth of algae. Which change directly leads to an increase in the number of decomposers?
- An increase in the death of producers
- A decrease in dissolved oxygen concentration
- An increase in nitrate concentration
- An increase in the population of fish
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