Question

Which rock is formed from broken-down pieces of rock? How do you think these pieces harden into rocks in nature?

Answer 1

clastic sedimentary by the processes of compaction and cementation

Answer 2

1. Chemical sedimentary rocks
2. Chemical sedimentary rocks are formed from sediments created by rocks being broken down into small particles (clasts).
3. Chemical sedimentary rocks are formed from sediments created by dissolved chemicals being precipitated out of the water they're dissolved in.