Which of the following soils primarily found in the Laurentian mixed-forest vegetation region?

✅ Explanation:
-Alfisols primarily found in the Laurentian mixed-forest vegetation region.
-Types of Soil(North America): 
-The current system of soil classification, called soil taxonomy, involves hierarchical groupings of soils based on strictly defined types of horizons, temperature, color, drainage or wetness, chemistry, and mineralogy.
-The following tables show the types of soils with respective features.
( Spodosols
-Found in the temperate zone with a cool climate.
-Formed on sandy materials of mixed coniferous and deciduous forests.
( Alfisols
-Found in warm summer regions of the cool temperate area.
-Located in the Laurentian mixed-forest vegetation region.
( Aridisols
-Characterized by dry weather, common in the basins of the United States.
-Spread across much of the Mexican Plateau and the southwest Pacific Coast.
( Vertisols
-Found in regions with high clay content and distinct dry and wet seasons.
-Notable for large cracks that form on the surface.