Which conclusion best matches the geologist's data? A geologist studies a rock wall that contains three layers of sedimentary rock
This list shows the geologist's observations:
• The top layer is composed of sandstone.
• The middle layer is composed of tuff, which is rock made of volcanic ash.
The bottom layer is composed of conglomerate,
A
The conglomerate layer formed after a volcanic eruption
Occurred
B
The sandstone layer formed after a volcanic eruption occurred.
A volcanic eruption caused some conglomerate to transform into
sandstone
A volcanic eruption caused some sandstone to transform into
conglomerate