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The answer is coal, because it is made up of dead plants that are buried, then are chemically changed by microorganisms then compacted over millions of years.

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What kind of sedimentary rock formed from plant material over a long period of time?

The answer is coal, because it is made up of dead plants that are buried, then are chemically changed by microorganisms then compacted over millions of years.


Is bituminous coal igneous sedimentary or metamorphic?

Bituminous coal is sedimentary! Bituminous coal is sedimentary!


What are the types of sedimentary rocks?

Clastic and nonclastic


Is coal a sediment?

coal is a sedimentary rock very high in carbonaceous content.


Is coal a form of rock?

Yes, coal is a sedimentary rock formed from plant material that has been compressed and heated over millions of years.


Are Sedimentary rocks formed from broken fragments called organic?

No, sedimentary rocks formed from broken fragments are called clastic sedimentary rocks. Organic sedimentary rocks are formed from the accumulation of organic material such as plant debris or remains of marine organisms.


And organic sedimentary rock that forms from the action of heat and pressure on plant material over millions of years is called?

They are called Biologic sedimentary rocks. Formed when large number of living thing die.


Chalk and coal are examples of a kind of sedimentary rock that is called?

Chalk and coal are examples of biochemical sedimentary rocks. Biochemical sedimentary rocks are formed from the accumulation and compression of organic remains such as shells, coral, or plant material.


Sedimentary rocks made from compressed plants?

Coal is a type of sedimentary rock that is formed from compressed plants. Over millions of years, layers of plant material are buried and compacted under pressure, eventually transforming into coal through a process called coalification.


What type of rocks are formed from ancient plants?

Rocks formed from ancient plants are called coal. Coal is a sedimentary rock that forms from the accumulation and compression of plant material over millions of years.


What is the only sedimentary rock type that can be formed from things once alive?

The only sedimentary rock type that can be formed from things once alive is organic sedimentary rock, specifically coal. Coal is formed from the accumulation and compaction of plant material, primarily in swampy environments, over millions of years. Other examples of organic sedimentary rocks include some types of limestone, which can form from the remains of marine organisms.


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

Coal is an organic sedimentary rock formed from plant materials, used primarily to generate electricity through combustion.