Plants absorb light in the wavelength ranges of 550 < λ< 700 nm andλ< 480 nm. if eight photons are required to produce one molecule of o2, estimate the molar production
rate of o2 by 1 m2 of leaf surface area under am1.5 conditions. report your result in mol/hr.

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.