A compound is a substance that contains two or more elements close elementA pure substance that is made from only one type ... limestone, shale, and sandstone are all examples of sedimentary rocks.

Gravel, on the other hand, is like a melting pot of a lot of different rock pieces, including limestone, basalt, and ...

leaving limestone rock exposed. Over time, rainfall wore away the rock into the uneven patterns that we see today. Limestone pavements are made up of large slabs of rock called clints ...