What made politics in the gilded age extremely over 50% voter so often corrupt and unconcerned with issues?

What natural processes produce large quantities of co2

Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?

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.