Which of the following habitats is most unsuitable for primary productivity?
A
Meadow
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B
Forest river bank
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C
Cave
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D
Pond
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Solution
The correct option is C Cave The plants or the other autotrophic organisms which can prepare food require sunlight. In a cave, there will be very less availability of sunlight and hence primary productivity due to photosynthesis by green plants will be very low. Hence, a cave ecosystem is most unsuitable for primary productivity.