Ethan Gonzales——Works at the International Committee of the Red Cross, Lives in Geneva, Switzerland.
In this exercise you will examine some common igneous, sedimentary and metamorphic rocks, and learn to classify them. CLASSIFICATION The classification of rocks is based on two criteria, TEXTURE and COMPOSITION.read more >>
QuesHub is a place where questions meet answers, it is more authentic than Quora, but you still need to discern the answers provided by the respondents.