William Smith's contributions to geology have increased our knowledge of the Earth's history. A. Smith found success easily in his profession because he came from a family of geologists and surveyors. B. Smith's work on canals allowed him to collect fossils and study rock layers all over England. C. Smith found that fossils are much more reliable indicators of geological time than rock strata are. D. Smith was named "the father of English geology" for his maps rather than for his other contributions to the field. E. Smith and Cuvier discovered that fossil patterns are easier to observe in ancient rock strata than in younger rock strata. F. The discovery of the principle of faunal succession allowed geologists to establish the relative age