16. The largest particle still considered as sediment is ----------------------------; the smallest is ---------------------------------. a. cobble, silt. b. cobble, sand. c. boulder, sand. d. boulder, clay. 17. The study and description of layered sedimentary deposits is called: a. sedimentology.
Benjamin Davis, Sr., was born just as the Reconstruction period was ending in Washington, D.C. He attended the all Black M Street High School, where he received his first military training, liking the discipline and order.
Davisâ ambition was to become a pilot in the Army Air Corps, but his request was denied and he was posted to the infantry instead. To avoid the situation in which a black man commanded whites, something the Army considered untenable, Davis was given command of an all-Â­black âserviceâ regiment at Fort Benning, Georgia.