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Coal gap - Wikipedia


The Permian–Triassic (P–Tr) extinction event, colloquially known as the Great Dying, the End Permian or the Great Permian Extinction, occurred about 252 Ma ( million years) ago, forming t...

Which best explains how coal deposits formed - Answers.com


Coal is a fossil fuel that formed through the transformation of organic plant matter. It is primarily used as a heat source to generate electricity.

Which best explains how natural gas deposits formed - Answers


Pressure from sediment turned decaying plankton at the bottom of the ocean into natural gas. .... What explains how coal deposits formed? A coal deposit is a ...

Middle School Round 12 Page 1 ROUND 12 TOSS-UP 1 ...


2) EARTH SCIENCE Multiple Choice Which of the following best explains the ... coasts that formed as a consequence of continental rifting: ... W) coal. X) granite. Y) slate. Z) peridotite. ANSWER: Z) PERIDOTITE ... Y) significant ashfall deposits.

World Geography - Virginia Department of Education


Which of the following best explains the population distribution of North. Africa? F . The natural ... G Mineral deposits have led to the creation of urban centers.

How Coal Works | Union of Concerned Scientists


Coal is formed by ancient plants and animals accumulating in moist peat bogs. As plants die off in ... This process happens best in river deltas or coastal plains. ... Low-sulfur coal deposits were developed primarily under fresh-water conditions.


www.wou.edu/las/physci/GS361/Fossil fuels/Coal.htm

These types of plants had evolved by the Devonian Period and coal deposits are found in ... It appears that many coal deposits formed when peat deposits in ..... Evans and Phylis Geller which explains the process of mountain-top removal.

Released Items 2010 Grade 8 Science


best explains why the wire feels hot after several minutes? ... r Over millions of years, coal formed from decayed plants ... Ancient glacial deposits. • Glacial scour ...

Coal reserves in the United States: Geology explains why we have ...


Nov 13, 2012 ... The United States had three major coal-forming periods: the ... years ago), which led to major coal deposits in Wyoming, Montana, North Dakota, and Texas. .... One of the best ways to reduce the risk of the still-mysterious ...

Where does coal come from? | MNN - Mother Nature Network


Aug 4, 2009 ... The basic recipe for any good fossil fuel is simple: Mix peat with acidic, hypoxic ... Coal formation begins when lots of plants die in dense, stagnant swamps ... the peat, Hackley explains, compressing it down into the Earth's crust. ... "Across the U.S., a lot of coal deposits are not Carboniferous," Rupp...

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How are coal deposits formed - Answers


Millions of years of pressure and heat turned decaying animals and plants into coal. .... Which best explains how coal deposits formed? ... from the remains of plants and basically ancient Geography explains how coal deposits are formed…

Which best explains the two categories of form and content


Content is what is said and form is the way it is said. .... Which best explains how natural gas deposits formed? Pressure from sediment ... coal deposits formed? Coal is a fossil fuel that formed through the transformation of organic plant matter.

Spring 2007 Earth Science - Virginia Department of Education


Read each question carefully and choose the best answer. Then mark the space on ... G Formation of soil from parent material. H Deposition of ... these best explains these observations? F. Organisms ... B mineral deposits .... H Coal. J. Zinc. 41 Students plan to use several rain gauges to compare average monthly rainfall.