Bunuel wrote:
Earthworms play an essential role in the soil ecosystem, feeding on organic residue and recycling nutrients back into soil;increasing rainwater absorption through soil aeration, soil loosening, and soil tunneling; and promoting flowering, root development, and overall plant health by fertilizing the soil with a unique waste product called castings.
A. increasing rainwater absorption through soil aeration, soil loosening, and soil tunneling; and promoting
B. they increase rainwater absorption
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