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.
Benjamin O. Davis Jr. Benjamin Oliver Davis Jr. (December 18, 1912 â July 4, 2002) was an American United States Air Force general and commander of the World War II Tuskegee Airmen. He was the first African-American general officer in the United States Air Force. On December 9, 1998, he was advanced to four-star general by President Bill Clinton.