Question

How does sediment form?


a.Weathering breaks down rock and other material.


b.Chemical changes cause sediment to cement together.


c.Loose material is compacted by pressure.


d.Molten rock cools below Earth’s surface.

Answer 1

Answer:

A.

Explanation: Pieces of rock are loosened by weathering, then transported to some basin or depression where sediment is trapped.

Answer 2

Answer:

C. Loose material is compacted by pressure

Explanation:

Clastic sedimentary rocks are made up of pieces (clasts) of pre-existing rocks. Pieces of rock are loosened by weathering, then transported to some basin or depression where sediment is trapped. If the sediment is buried deeply, it becomes compacted and cemented, forming sedimentary rock