When a thin plant or animal leaves an impression in sediment that becomes sedimentary rock, this is a fossil.

Which of these resources is used worldwide to make construction products, pottery, and porcelain

The pattern of this wave changes between its beginning and end. what is true about the amplitude and wavelength of the wave when the pattern changes?

Sea stars, sea urchins, sand dollars, and brittle stars are all memeber of a group, what is the common name of the group they are all in