Which of the following is unrelated to the importance of insects to the soil?

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Insect maintains the carbon cycle

Insects helps to increase soil porosity

Insects maintain soil structure

Insects have three pairs of jointed legs

answer is D.

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Detailed Solution

Insects are very important for the soil because:

Insects help to maintain soil structure.
Insects help to control the population of other organisms like ants, tamarind etc.
Insects help to maintain the carbon and nitrogen cycle of soil.
Insects increase soil porosity which increases water retention.
Insects increase soil organic matter and maintain the carbon cycle.

Having three pairs of jointed legs is not important to the soil, it does not affect the soil. Hence, it is unrelated to the importance of insects to the soil.

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