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.
organic
Organic rock
Organic rock
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.
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 rocks are formed from the accumulation of once living things. Coal is an example of a sedimentary rock.
organic
An organic sedimentary rock.
Reef Limestone
Lignite, coal and limestone.
organic/biochemical sedimentary rocks are formed of once-living organisms
There are different ways sedimentary rocks are formed. Many sedimentary rocks are made from the broken pieces and particles of other rocks, [which is a reason why the name was given to these types of rocks (sediment)] and these bits get cemented together. These types of sedimentary rocks are called clastic sedimentary rocks. Chemical sedimentary rocks are another type that comprise of mineral crystals, like gypsum and halite. Lastly, organic sedimentary rocks are made of, well...... organic materials. They are made of the remains of once living organisms and contain the remains of living creatures such as clam shells, plankton skeletons, dinosaur bones, and plants.
Organic rock