Relatively high precipitation in the regions in which these soils are found cause greater mineral alterations and more alluvial leaching than in other soils.

Agene pool: a) is the collection of all the alleles found in a single species b) is the collection of all the alleles found in a single population c) is the collection of all the chromosomes found in a single population d) is the collection of genes in a species that allow the individuals to swim