ECOLOGY
BIODIVERSITY AND ITS CONSERVATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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There are not enough nutrients in the water
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The flow rate of water has increased
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There is an excess of nutrients in the water
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There was too much oxygen in the water
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Detailed explanation-1: -An overabundance of nutrients-primarily nitrogen and phosphorus-in water starts a process called eutrophication. Algae feed on the nutrients, growing, spreading, and turning the water green.
Detailed explanation-2: -Eutrophication is the process of mineralization of the water body. This process is known to deplete the biochemical oxygen demand (B.O.D.) of the water body leading to killing of fish and other organisms.
Detailed explanation-3: -Excessive nutrients lead to algal blooms and low-oxygen (hypoxic) waters that can kill fish and seagrass and reduce essential fish habitats.
Detailed explanation-4: -Stated simply, algae blooms, fish kills, and poor water clarity are the visible indicators citizens will recognize; while nutrients, dissolved oxygen, turbidity, and Chlorophyll-a concentrations are measurable indicators managers and scientists monitor.