Fossils

Sedimentary Rock is known as layers of sediment that have built up over and time and then reformed by weather and erosion. Which answer choice includes examples of sediment:

• dirt, metal, sand, gravel

• dirt, sand, gravel, mud, clay, silt

• dirt, sand, gravel, mud, clay, silt, boulder

• dirt, sand, glass, gravel, mud, clay, silt

• dirt, metal, sand, gravel, mud, clay, silt