Abstract: A cleaning composition and method for the removal of contaminants, such as, oil and grease from a surface, particularly concrete and asphalt. The composition includes an absorptive material, charcoal, and a pH modifying agent which is applied and removed in a dry form.
Sedimentary rocks form when particles of sediment are deposited by water or wind, and then (in most cases) hardened or consolidated through time. Shale, sandstone, and limestone are types of sedimentary rocks that often contain fossils.ven though a relatively small proportion of plants and animals that live are preserved as fossils, because so many animals live and die, and because sedimentary rock is very common, finding fossiliferous (fossil-bearing) rocks is not very difficult.
Types of Fossils. There are many ways fossils can form (don't worry, we'll get to that soon) but fossils can be divided into two main types: body fossils and trace fossils. The remains of a Hadrosaur are an examples of a body fossil, or fossils of the actual organism.Typically, hard structures like bones, shells and teeth fossilize more often than soft-bodied structures like tissues or plant leaves, but as is seen with the horsetail relative, plants can become fossils.ypes of Fossils. There are many ways fossils can form (don't worry, we'll get to that soon) but fossils can be divided into two main types: body fossils and trace fossils. The remains of a Hadrosaur are an examples of a body fossil, or fossils of the actual organism.