Which soil order is associated with alati's characteristic of being composed mainly of fragments?

The correct answer is Alfisol. Alfisols are typically characterized by a clay-rich horizon that is formed under moist conditions, often appearing granular or blocky, and they are fertile and support a wide range of vegetation. They develop under forest or savanna ecosystems and are found in temperate regions.

The mention of being composed mainly of fragments aligns with the profile that can form in Alfisols due to the weathering of parent materials and the accumulation of organic matter. These soils are known for having relatively high fertility and are often used for agriculture due to their nutrient-holding capacity.

In contrast, Vertisols, found in areas with pronounced wet and dry seasons, are characterized by large amounts of clay that shrink and swell, creating cracks, while Ultisols are strongly weathered soils found in humid temperate regions. Andisols, formed from volcanic ash, are typically light and well-aggregated due to their mineral composition. Each of these soil orders has distinct properties that do not primarily associate with the concept of being fragmental like Alfisols.