Chalk formed from sediments made of skeletions of microscopic living things in the ocean must be a(n) organic rock.
Organic Sedimentary rock would probably be the best answer!
The two kingdoms of microscopic living things are Bacteria and Archaea. These organisms are single-celled and lack a distinct nucleus.
Fossils are the preserved remains or impressions of living organisms that lived in the past. They can be found in rocks or sediments and provide important information about the history of life on Earth.
If you mean why are they are not skeletons as a life form then the dull answer is that a living mammal needs a bloodstream and muscles, and tissue and so on. Most insects and spiders are basically skeletal.
Sedimantary RocksThese rocks are formed from th ehot lavaJk jk i was bored i dont reall know what they mean and i real HATE STAaR
Organic Sedimentary rock would probably be the best answer!
When sediments of living things are pressed together, they can form fossils. Over time, the pressure and minerals in the sediments can turn the organic material into rock, preserving the remains of the living organisms as fossils.
Limestone is a boigenic rock. It is formed as a byproduct of living things, frequently it is made from the calcareous skeletons of living creatures. If we take the Chalk as a limestone, this was made in a warm shallow sea from the shells of microscopic plankton as they died and sank to the sea floor. However along with the calcareous shells, there were also shells of diatomic plankton which are made out of silicon dioxide (quartz). After deposition as the chalk was compacted by the overlying sediments that were laid down on top of it and it became buried, the water it contained became heated and the skeletons of the silicious diatoms dissolved in the water and then were redeposited as layers of "Chert" or "Flint" in the Chalk.
Yes, coral reefs are made of the limestone skeletons of deceased corals - the living corals are on the surface of the reef.
No, there are no skeletons on the moon. The moon is a lifeless environment, so there are no living creatures (or skeletons) on its surface.
scientists think that petroleum formed from the remains of plankton and other microscopic protists, plants, and animals living in shallow seas millions of years ago. The remains of these organisms settled on the ocean floor and were covered by sediments. Over millions of years, the pressure and heat produced by the sediments coverted the remains of these organisms into a syrupy liquid.
It was the skeletons/shells of living animals and plants.
Two types of biogenous sediments are calcareous ooze and siliceous ooze.
The two kingdoms of microscopic living things are Bacteria and Archaea. These organisms are single-celled and lack a distinct nucleus.
The key is the sediments. ... Biochemical sedimentary rocks are formed from organic processes that involve living organisms producing the sediments. These living organisms can be snails and clams whose discarded calcium carbonate shells can form limestone.
We used a microscope to study microscopic pond life.
Calcium are the main composite of shells and bones.