Clay Minerals, Silica (SiO2), and Dissolved Potassium Bicarbonate in the Soil

Multiple Choice

Clay minerals, silica (SiO2) , and dissolved potassium bicarbonate in the soil water are products of which process?

A) chemical weathering of orthoclase feldspar
B) differential mechanical weathering of micas
C) chemical weathering of olivine and plagioclase feldspar
D) mechanical weathering of granite and rhyolite