Match it term to its correct definition. Superposition Cross-cutting relationships Unconformities Original horizontality A. the oldest is on the bottom, the youngest on top. B. faults, fractures are younger than the rocks they cut through. C. missing time D. sedimentary layers/lava flows are deposited in flat layers.

Superposition: The oldest is on the bottom, the youngest on top. It is the deposition of one stratum over another in which the lower strata are older.

Cross-cutting relationship: Faults, fractures are younger than the rocks they cut through.

Unconformities: missing time. An unconfromity is a gap in time in rock strata, where erosion occurs while deposition slows or stops.

Original horizontality: Sedimentary layers/lava flows are deposited in flat layers.