Which of the following statements is true? The gravitational pull of Andromeda causes other galaxies to orbit around it.
The rotation of the earth makes the sun look like it is moving from east to west.
The earth's orbit makes the stars look like they move with the seasons.
all of the above

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.