A swampy forest.
Coral reef
Chalk is one limestone formed from organic processes. There are others.
the ocean
Limestone made from shells would be an organic sedimentary rock.
Limestone is not generally referred to as an organic rock. It is primarily composed of calcium carbonate, which is a mineral. However, in some cases, limestone can contain remnants of organic matter such as shells, coral, or other marine organisms, which can give it a slightly organic origin. This is why some people may refer to limestone as an organic rock.
A purely chemical sedimentary limestone would contain no fossil remnants, organic limestone would.
Limestone made from shells would be an organic sedimentary rock.
Sandstone is not an organic sedimentary rock, but limestone is.
Limestone can be classified as organic, chemical, or bioclastic.
Yes
yes
Limestone and dolomite Further answer Unfortunately this is not so. Limestone is just calcium carbonate. This is not recognised as an organic compound even though it has carbon in it! All organic compounds by definition contain carbon but not all carbon compounds are 'organic'. DNA is an organic molecule, as is alcohol, aniline, any fat, ether, benzene, TNT, and millions of others.