How can the introduction of decomposers improve soil quality?

The introduction of decomposers into the soil plays a crucial role in enhancing soil quality primarily through the addition of organic matter. Decomposers, which include organisms such as bacteria, fungi, and certain invertebrates, break down dead plant and animal material into smaller, simpler compounds. This process results in the formation of humus, a rich organic component of soil that improves its structure, enhances moisture retention, and provides essential nutrients to plants.

Adding organic matter through the activity of decomposers contributes to a healthier soil ecosystem, fostering a more diverse community of microorganisms and promoting beneficial interactions among soil organisms. Enhanced soil quality not only supports plant growth but also improves the soil's ability to filter water, retain nutrients, and resist erosion.

The other options do not accurately reflect the primary function of decomposers in improving soil quality. For instance, increasing soil acidity is not a direct benefit of decomposer activity, and while decomposers can lead to the mineralization of nutrients, the most significant improvement comes from the addition of organic matter rather than a reduction in worm activity.