The flood geology theory teaches essentially that the Biblical Flood of Noah buried all the fossils within a year's time, several thousand years ago. Although this theory accepts each miracle explicitly mentioned in the Biblical Flood story, the Institute for Creation Research (ICR) maintains that God uses miracles very sparingly; once He finished using a few miracles to get the Flood rolling, He let it operate according to natural laws to produce the geological features that are now seen in the earth's crust. This part of their version of the flood geology theory purports to explain the structure of the rocks in the crust, and thus makes testable scientific predictions: wherever this theory is naturalistic, it is a scientific theory deserving a scientific response.