Which of the following is an abiotic factor in an aquatic ecosystem?
A
Phytoplankton
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B
Hydra
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C
Microbes
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D
Temperature
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Solution
The correct option is D
Temperature
Abiotic factors are the non-living physical and chemical components of an ecosystem. Temperature, light, water, and soil are the major abiotic factors that affect living organisms and the functioning of ecosystems. Phytoplankton, hydra and microbes are living organisms in an aquatic ecosystem and are hence, examples of biotic components of the ecosystem.