All of the above
None of the above
Original Horizontality; all rocks are created in flat, horizontal layers
Superposition; older rocks are found on the bottom of a series of rock, and younger layers are on top
Original Horizontality; older rock layers are found on bottom of a series of rocks, and younger layers are found on top
Superposition; sedimentary rock layers are created in flat, horizontal layers
They are similar in age because they are in the same layer.
Artifact 7 is slightly younger because the layer above is more shallow
Artifact 7 is slightly older because its buried deeper
Artifact 6 is older because the artifact is darker
Places where the earth's crust has cracked or broken.
Places where the rocks are being compressed into metamorphic rocks.
Places where the earth has undergone change.
Places where scientists can find absolute age of sedimentary rocks.