Read the following passage: wind and water carry sand, debris, and small pieces of rocks and deposit them in layers. these layers pile up and after many years form a single rock called rock a. the movement of tectonic plates buries rock a deep inside earth. heat and pressure change the mineral composition of rock a and transform it into rock b. rock b comes out to the surface of earth due to plate movements. which statement is most likely correct? rock b may have fossils. rock a may have gas bubbles. rock b may have flattened crystals. rock a may have shiny, glassy surface.

Why might a single rock layer exhibit different types of sedimentary rocks within it? view available hint(s) why might a single rock layer exhibit different types of sedimentary rocks within it? such a rock layer, termed a facies, when traced laterally represents a variety of depositional environments that formed in a sequence over time. such a rock layer, termed a facies, when traced laterally represents a single depositional environment that formed over time. such a rock layer, termed a facies, when traced vertically represents a variety of depositional environments that formed at the same time across a broad area. such a rock layer, termed a facies, when traced laterally represents a variety of depositional environments that formed at the same time across a broad area. such a rock layer, termed a facies, when traced vertically represents a variety of depositional environments that formed in a sequence over time.