How are earthworms connected with soil fertility? A) They eat essential nutrients and reduce the fertility of the soil. B) They increase soil fertility by fixing nitrogen compounds in the soil. C) They

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asked Aug 2, 2020 29.4k views

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How are earthworms connected with soil fertility? A) They eat essential nutrients and reduce the fertility of the soil. B) They increase soil fertility by fixing nitrogen compounds in the soil. C) They increase soil fertility by converting dead leaves into rich humus. D) They convert minerals in the soil to compounds that are harmful to plants.