Does organic matter affect soil texture?

Organic matter has a significant positive impact on soil texture. It improves the physical properties of the soil by enhancing its structure. Specifically, organic matter helps bind soil particles together, leading to the formation of aggregates. This aggregation is crucial because it increases porosity, improves water retention, and enhances aeration, all of which are vital for healthy plant growth.

The presence of organic matter also contributes to the soil’s ability to hold nutrients, as it provides a reservoir of nutrients that can be exchanged with plant roots. Thus, the correct answer highlights that organic matter positively influences the texture and overall health of the soil, making it fertile and more conducive to supporting various forms of life.

The other options, which suggest a lack of effect or a negative impact, do not reflect the scientifically supported role of organic matter in improving soil texture and structure across all soil types, not just in sandy soils.