Organic Sedimentary rock would probably be the best answer!
Chalk formed from sediments made of skeletions of microscopic living things in the ocean must be a(n) organic rock.
Organic sedimentary rock is comprised of the remains of once living organisms.
The main types of sedimentary rocks are clastic (formed from fragments of other rocks), chemical (formed from minerals precipitated from water), and organic (formed from the remains of once-living organisms). Examples include sandstone, limestone, and shale.
Organic rock
Organic rock
Chalk formed from sediments made of skeletions of microscopic living things in the ocean must be a(n) organic rock.
Sedimentary rocks that are formed partially by animals and plants are called organic sedimentary rocks. These rocks are formed from the accumulation and lithification of the remains or traces of once-living organisms. An example of an organic sedimentary rock is limestone, which is formed from the accumulation of marine organisms' shells and skeletons.
Sedimentary rocks formed from living or once-living material are called organic sedimentary rocks. Examples include limestone, coal, and chalk.
Organic sedimentary rock is comprised of the remains of once living organisms.
Organic sedimentary rock is comprised of the remains of once living organisms.
Organic sedimentary rock is comprised of the remains of once living organisms.
The main types of sedimentary rocks are clastic (formed from fragments of other rocks), chemical (formed from minerals precipitated from water), and organic (formed from the remains of once-living organisms). Examples include sandstone, limestone, and shale.
An organic sedimentary rock.
Organic sedimentary rocks are formed from the accumulation of once living things. Coal is an example of a sedimentary rock.
Limestone is the sedimentary rock formed primarily from the accumulation of shell, coral, algal, and fecal debris produced by living organisms like mollusks, corals, and algae. It is the only rock primarily formed by living animals.
This type of sedimentary rock is called organic sedimentary rock. It forms from the accumulation and compaction of plant and animal remains, such as shells, skeletons, and plant materials. Common examples include limestone, coal, and chalk.
organic/biochemical sedimentary rocks are formed of once-living organisms