Write a report : Formation of coal
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Coal is still the largest source of energy for the generation of electricity worldwide, though it’s being phased out in many parts of the world due to its impact on the climate. But if we want to understand the origins of coal, we have to look back much further — to a period called the Carboniferous.
The Carboniferous (after the Latin name of coal) took place approximately 360 to 300 million years ago. Amphibians were the dominant land vertebrates and vast swaths of huge trees covered the singular mega-continent Pangaea. The atmospheric content of oxygen was at its highest level in history: 35%, compared with 21% today; all the conditions were ripe for the formation of massive coal beds.
Coal never formed before the Carboniferous, and very rarely formed after it. Two conditions are regarded as crucial for this event:
the emergence of wooden trees with bark; a large quantity of wood was buried in this period because mushrooms and microorganisms hadn’t yet figured out how to decompose trees. After they did, coal formations became much rarer.the lower sea levels; the decrease of the sea level created many swampy environments in what is today North America and Europe. These swamps were vital for coal formation.
The Carboniferous (after the Latin name of coal) took place approximately 360 to 300 million years ago. Amphibians were the dominant land vertebrates and vast swaths of huge trees covered the singular mega-continent Pangaea. The atmospheric content of oxygen was at its highest level in history: 35%, compared with 21% today; all the conditions were ripe for the formation of massive coal beds.
Coal never formed before the Carboniferous, and very rarely formed after it. Two conditions are regarded as crucial for this event:
the emergence of wooden trees with bark; a large quantity of wood was buried in this period because mushrooms and microorganisms hadn’t yet figured out how to decompose trees. After they did, coal formations became much rarer.the lower sea levels; the decrease of the sea level created many swampy environments in what is today North America and Europe. These swamps were vital for coal formation.
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Formation of coal:
- Coal was formed when the forests in the low wetland areas got buried underneath soil due to flooding etc.
- When large amount of soil got deposited in one place, their structure got compressed.
- When they were too down from the surface, the temperature increased and the plants got protected from oxidation or bio degradation.
- This high "temperature and pressure" slowly got converted into coal.
- Coal is a "sedimentary rock" that is generally bad for the environment when used in industries or somewhere else.
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