Final answer:
Red beds, diamictites, and evaporites all share the characteristic of being sedimentary rocks, although they have distinct features and formation processes.
Step-by-step explanation:
Red beds, diamictites, and evaporites are all types of sedimentary rocks. While each type of rock has its unique characteristics, they share some commonalities. For example, red beds are sedimentary rocks consisting of sandstone, siltstone, and shale that are predominantly red in color due to the presence of ferric oxides. Similarly, diamictites are sedimentary rocks composed of a mixture of different-sized particles, including clay, silt, sand, and gravel. Evaporites, on the other hand, are sedimentary rocks that form when water evaporates and leaves behind minerals and salts. Therefore, the common element among these rocks is that they all originate from different geological processes involved in the formation of sedimentary rocks.