In an area where a river has cut deep into Earth, there are several layers of very different rock
exposed. The oldest rock layer is most likely to be
the layer that is
A. below the other layers.
B. the thickest layer.
C. the most rich in fossils.
D. igneous intrusive rock.

Type the letter that represents the correct location for each particle type below.

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.

Which change to the system wood cause the freely-moving piston to lower?