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Paleozoic
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How are coal and limestone different?
LImestone and coal are different because of their outcomes. Limestone , after the cementing, becomes a rock. Coal, after the pressing together, becomes a fossil.
How are coal and limestone similar to each other?
They are both Igneous rocks and have both been formed from decayed, ancient, organic material.
Why are coal and limestone classified as organic sedimentary rocks?
Because coal and most limestones are formed from organic material (living things). Coal is formed from compressed plant material, and limestone from animal remains (hard parts: soft parts are almost always rotted, broken by force or consumed by predators). From here you get different kinds of coal, depending on how long and how deep they have been buried. Limestones vary according to their composition (through formation). 'Shelly limestone' is composed of shell, as the name suggests. Chalk is composed of coccoliths - minuscule shell of tiny sea creatures millions of years ago. These rocks are, therefore, fossils.
What do you get when you mix coal and limestone?
limecoal
How is limestone important to coal mines?
the limestone helps to stop explosions in the coalmines ...
Which rock most likely formed as a result of biological processes?
Coal.
What is a sedimentary rock formed from materials that were once living?
Lignite, coal and limestone.
What kind of sedimentary rock may be formed both chemically and organically?
Conglomerate,Breccia,Sandstone,Siltstone,Shale,Rock salt,Rock gypsum,Dolostone,Limestone,Bituminous coal.
How are coal and limestone different?
LImestone and coal are different because of their outcomes. Limestone , after the cementing, becomes a rock. Coal, after the pressing together, becomes a fossil.
What are the most common carbon-based rocks?
Coal, limestone & dolomite
What are two important important organic rocks?
Limestone and coal are two important organic rocks.
How is cement formed from limestone?
cement is formed from limestone by combustion of limestone ( heating of the limestone)!
How is concrete formed from limestone?
concrete is formed from limestone by the combustion of the limestone (heating of the limestone)!
How do the coal and limestone specimen differ in appearance?
Coal is easily seen as black. Limestone is usually gray. Coal has no real features to it. Limestone has shells, and other things.
Why are coal and limestone sometimes referred to as biological rocks?
Because they are primarily formed of organic materials.Read more: Why_are_limestone_and_coal_sometimes_referred_to_as_biological_rocks
What rock is formed when limestone goes under metamorphic change?
Marble is a rock formed by the metamorphism of limestone.
What is sedimentary rock formed from deposites of shells?
Limestone. However most large masses of limestone formed from coral reefs, not shells. The shell fossils in this limestone are "incidentals" due to shell dwelling organisms living on the periphery of the reef, not the bulk of the limestone.
