The Paleozoic sedimentary record across the North American craton has been divided into unconformity-bounded cratonic sequences with names such as Sauk, Tippecanoe, Kaskaskia, and Absaroka. Each cratonic sequence documents what sequence of events?

transgression followed by regression

Explanation:

The Paleozoic, even though recent in occurrence, is the first stage of the Phanerozoic and it lasted the longest, starting about 570 million year ago, it begins and ends with a supercontinent

The most important events of the Paleozoic were the rising and falling of sea level over the continents. In a marine transgression, there is rise in sea levels ea level over the land, while in a marine regression sea level retreats. In this period of paleogeography, there are four complete cycles of marine transgressions and regressions

Hence, the Paleozoic sedimentary rocks across the North American craton contain evidence of marine transgressions and regressions

answer: secession

secession, as it applies to the outbreak of the american civil war, comprises the series of events that began on december 20, 1860, and extended through june 8 of the next year when eleven states in the lower and upper south severed their ties with the union. the first seven seceding states of the lower south set up a provisional government at montgomery, alabama. after hostilities began at fort sumter in charleston harbor on april 12, 1861, the border states of virginia, arkansas, tennessee, and north carolina joined the new government, which then moved its capital to richmond, virginia. the union was thus divided approximately on geographic lines. twenty-one northern and border states retained the style and title of the united states, while the eleven slave states adopted the nomenclature of the confederate states of america.

explanation:

b. martin luther king jr. wrote and spoke "i have a dream"

explanation:

i know this 100 percent is correct   b. is the best one. < 3