Using the image shown, select the statement that is true about the temperature of the gases and their kinetic energies. options:

A. Gas A is at a higher temperature because there are more molecules.

B Gas A is at a higher temperature because the molecules are moving faster. C. Gas B is at a higher temperature because there are more molecules.

D. Gas B is at a higher temperature because the molecules are moving faster.

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.