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Earth Sciences is the study of the Earth in terms of Geography, Geology, Geophysics, etc.It combines the use of Sciences such as Biology, Chemistry, Physics and Mathematics to understand the Earth System. As long as you clean the tile while the calcium is just a film.
See the Problems with a Global Flood FAQ, the April 2002 Post of the Month A Flood Geologist Recants and the Talk. They have natural explanations: tree-roots that grew into soft, underlying layers of clay, and fossils found in inclined strata.
They can also be observed forming in modern environments. The "man-tracks" of the Paluxy Riverbed in Glen Rose, Texas were not man tracks at all.
When I first heard of these (about 1946), I purchased all the back issues and subscribed to all future issues, trying to note all studies and comments potentially useful to creationists. During the century after Lyell and Darwin and up until about 1950, the reaction of practically all Christian leaders was to accept uniformitarianism and the radiometric ages, accommodating them by either the gap theory or the day-age theory. Perhaps the first was Dudley Joseph Whitney, an agricultural scientist who had graduated from Berkeley and then edited various agricultural journals.
Whitney's article, 'The Age of the Earth: Comments on Some Geologic Methods Used in its Interpretation," appeared in the in December 1941, and was the first modern defense of a recent creation that I found.
He would have answered that the Earth was ancient, that there had not been a Noachian flood, and that the species of life had not been fixed over the history of Earth.