Of the soil-forming factors parent material, climate, organisms, topography, and time, choose two that have had the dominant influence on developing soil properties characterizing each of the...

Of the soil-forming factors parent material, climate, organisms, topography, and time, choose two that have had the dominant influence on developing soil properties characterizing each of the following soil orders: Vertisols, Mollisols, Spodosols, and Oxisols

To which soil order does each of the following belong: Psamments, Udolls, Argids, Udepts, Fragiudalfs, Haplustox, and Calciusterts.