The table lists the steps in the formation of siltstone, a type of sedimentary rock.

What is the third step in the formation of siltstone?

A. heating of sediment to very high temperatures
B. evaporation of sediment
C. mixing of sediment
D. compaction and cementation of sediment
*
1 point
Captionless Image
A
B
C
D

D. compaction and cementation of sediment