It is the interaction of these soil forming factors in various combinations that gives us the great variety of soils we see today. There are many variations within each factor, and even if there were only 10 gradations in each factor, there would be 105, or 100,000 different combinations, which would mean 100,000 different soils. In truth, no two soils are expected to be just alike, but soils, which are similar, are grouped together for purposes of classification for cultural practices and uses. We will discuss these factors in more detail in a later module
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