Question

How do clastic sedimentary rocks form?

A.
Fragments of rock are squeezed and cemented together.

B.
Plant and animal remains are squeezed and cemented together.

C.
Solid chemicals in water harden and form rocks.

D.
Lava cools and hardens into rock.

Answer 1

Clastic sedimentary rocks are formed by fragments of rock that are  squeezed and cemented together. Answer A

Answer 2

The correct answer would be A. Fragments of rock are squeezed and cemented together.

Clastic sedimentary rocks refer to the group of rocks formed by clasts or pieces of pre-existing rocks.

Four basic steps are involved in the formation of clastic sedimentary rocks:

• Weathering: it causes the loosening of the rocks.
• Transportation: sediment is carried along the currents to the depression or basin.
• Deposition: sediments are deposited and trapped in the basin.
• Compaction: sediments are compacted and cemented together and form a rock.