what are the distinguishing features of sedimentary rocks?
['Bedding. Bedding is often the most obvious feature of a sedimentary rock and consists of lines called bedding planes, which mark the boundaries of different layers of sediment. ... ', 'Graded beds are common when a sediment is being deposited by a slow‐moving current. ... ', 'Fossils. ... ', 'Desiccation cracks and ripple marks.']