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Q: Which materials are absent when coal is formed?
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Related questions

What is a sedimentary rock formed from materials that were once living?

Lignite, coal and limestone.


Where did coal get its energy from forest and swamps?

Yes coal was formed by the bio materials of forests and swamps and the energy as now came from the sun.


Is an organic sedimentary rock formed from plant materials that is used primarily to generate electricity?

coal


What is an organic sedimentary rock formed from plant materials that is used primarily to generate electricity?

coal


What Black rock formed from plant mineral?

The fossil fuel, Coal and the gemstone, jet are formed from ancient plant materials. Jet is a type of lignite.


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 is the major difference between how oil and coal are formed?

The Maine differences are the organic source materials and whether the sedimentation was in the sea or on land.


What materials was used to make coal trucks?

what materials were used to make coal trucks


The remains of vegetation of long ago has formed?

Coal


What fuel is formed pressures and heat causes reains of swamp plants?

coal. coal is formed.


Where are the first stages of coal formed?

Coals are formed by plants, after millions of years they become coal.


How are diamonds formed in coal?

Diamonds are not formed in coal: each is an allotrope of carbon and are formed by Mother Nature under entirely different circumstances.