Limestone is an example of an organic sedimentary rock.
What is organic sedimentary rock?
These are organic-rich sedimentary rock which contains significant amount of organic carbon.
- Limestone chemically is calcium carbonate, which contains organic carbon.
- Rock salt is an inorganic sedimentary rock.
- Sand stone is a clastic sedimentary rock which is formed by the compact sand granules.
- Iron ore is a source of minerals and iron.
Hence, here limestone is the only organic sedimentary rock.
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