In an ecosystem, which one of the following is natural controlling force?
Soil moisture
Temperature
Food
Predators
A
Soil moisture
B
Temperature
C
Predators
D
Food
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Solution
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Predators play an important role in maintaining the healthy ecosystem. They occupy the topmost level in the food chain and cull on the sick animals and also controls the population of the prey. They help in recycling the nutrient e.g detrivores consume dead and decay matter so they help in decomposition and nutrient recycling.
Thus the correct option is D.
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