Question

How are rocks organically and chemically formed

Answer 1

Answer:

Organic or biological sedimentary rocks are formed by living organisms, typically when the remains of living organisms build up and are compacted by sediment. Coal, for example, is made from long-dead vegetation crushed by thick layers of sediment and chemically altered through heat and pressure.

Answer 2

Answer:

First, sedimentary rocks found under the deep sea bed .