The damage caused by an earthquake depends on which factors? select all that apply.
a. distance from the focus
b. number of people in the area
c. type of construction in the area
d. composition of ground underneath the structures

Pegmatites are igneous rocks in which the individual minerals are very large. typically, the minerals are all light-colored quartz, feldspar and muscovite. if you were given a black and white photograph of a pegmatite in a quarry (where the rock has been blasted and broken), what physical properties could you use to identify those three minerals in this hypothetical photo? describe each mineral and the specific diagnostic properties. be specific.