Amixture consisting of 30 ml of waste and 270 ml of seeded dilution waster has an initial do of 8.55 mg/l; after five days, it has a final do of 2.40 mg/l. another bottle containing just the seeded dilution water has an initial do of 8.75 mg/l and a final do of 8.53 mg/l. find the five-day bod of the waste.

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.

Under which circumstances are kp and kc equal for the reaction aa(g)+bb(g)⇌cc(g)+dd(g)?

Quickly what are the following of organisms that existed over a wide area but only for a limited time period called a.soft fossils b.mold fossils c.index fossils d.trace fossils