If you were examining a tall, undisturbed cliff of sedimentary rock, where would you expect to find the oldest layers?

At the very bottom of the cliff

Mixed randomly throughout the cliff

Which statement best describes the timescale required for loose sand and silt to become solid sedimentary rock?

It happens over a few years due to seasonal weather changes.

It can occur in a matter of weeks during a major flood.

The process takes thousands or millions of years to complete.

It is an instant process that happens under high pressure.

A single, catastrophic event like a large flood or earthquake.

A specific period of time during which sediment was deposited.

The daily changes in weather patterns over a single year.

A different type of mineral that can be found in the area.

Cementation, settling, then compaction

Compaction, cementation, then settling

Settling, melting, then cooling

Settling, compaction, then cementation

The rock formation process of compaction and cementation takes thousands of years.

Sandstone can only form in deserts, not on mountains.

Rocks found on mountains are always igneous rocks from volcanoes.

The sand on that mountain is too new to have turned into rock yet.