Why is the interdependence of the worms and plants an example of commensalism?

The interdependence of worms and plants is a classic example of commensalism because worms benefit from their relationship with plants without harming them. As worms burrow through the soil, they aerate it and enhance its nutrient content, promoting better plant growth. While plants gain improved access to nutrients and water, the worms thrive in the organic matter from decaying plant roots and other debris. This mutual enhancement occurs without any negative impact on the plants, exemplifying commensalism.