Question

in undisturbed rock sequences, which principle helps determine relative age? superposition cross - cutting relationships lateral continuity original horizontality

Explanation:

The principle of superposition states that in an undisturbed sequence of sedimentary rocks, the oldest rocks are at the bottom and the youngest are at the top, which helps in determining relative age. Cross - cutting relationships are about the relative age of intrusions and faults. Lateral continuity is about the extent of rock layers, and original horizontality is about the initial position of sedimentary layers.

Answer:

Superposition