GEOLOGY

Detailed explanation-1: -Once the sediment settles somewhere, and enough of it collects, the lowest layers become compacted so tightly that they form solid rock. Chemical sedimentary rocks, like limestone, halite, and flint, form from chemical precipitation.

Detailed explanation-2: -This is known as sedimentation. As more and more layers pile up they start to push down on the lower layers. This is called compaction. Over a long period of time, water is squeezed out of the layers of rock and salt crystals form.

Detailed explanation-3: -Sediments come from already-existing rocks that are weathered and eroded. Sedimentary rock forms when sediments are pressed and cemented together, or when minerals form from solutions.

Detailed explanation-4: -This weight presses the sediment particles together, compacting them. Water passing through the spaces in between the particles helps to cement them together even more. This process of compacting and cementing sediment forms sedimentary rock.

Detailed explanation-5: -Pieces of rock are loosened by weathering, then transported to some basin or depression where sediment is trapped. If the sediment is buried deeply, it becomes compacted and cemented, forming sedimentary rock. Clastic sedimentary rocks may have particles ranging in size from microscopic clay to huge boulders.