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.

Name the soil taxonomy category and discuss the engineering implications of these soil taxonomy classes: Aquic Paleudults, Fragiudults, Haplusterts, Saprists, and Turbels.