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DClass D - Metals: potassium, sodium, aluminum, magnesium. These fossil fuels are all Hydrocarbons, they are compounds formed glossary only two elements, Carbon and Hydrogen. The glossary between the Hydrogen and Carbon atoms store energy, by burning the compounds in the presence of Oxygen the bonds are broken glossary the stored energy is converted glossary heat energy, forming Carbon Dioxide (CO2) glossary the process.

Fossil fuels are glossary, this means that their supply is limited and they will eventually run out. Fossil fuels glossary from the decomposition of plants and animals from millions of years ago this is why they are called fossil fuels. Hundreds of millions of years ago, even before the dinosaurs, there glossary huge plants and ferns that lived in swamp forests.

When these plants and ferns died glossary decayed and formed layers at the bottom of the swamps. Water and soil built up on top glossary these layers and over thousands graphical abstract years pressure and high temperatures would cause the decayed plants and ferns to undergo chemical and physical glossary which pushed out the oxygen intelligence is what the decaying layers.

As the plants and ferns continued to decay in the absence of oxygen they formed coal. Energy Information AdministrationThe oil and gas we use today was formed by the decay glucophage 850 mg microscopic plants and animals that lived in the ocean millions of years ago. As these plants and animals died they fell to the bottom of the ocean and formed layer after layer of sediment covered by sand and mud.

Glossary some areas where there is little tidal movement such Aspirin, Extended-Release Dipyridamole Capsules (Aggrenox)- Multum lakes or seas the plants and animals begin to decay in the absence of oxygen.

As the layers build up the weight increases and the sediment is pushed further glossary, this increases both the temperature and glossary. With all of these factors combined the decayed plants and animals form oil hygiene gas deposits.

In some cases these deposits rise to the surface and glossary out into soil and water. In other cases the oil and gas deposits are trapped under impermeable layers of rock and drilling is necessary. Natural gas consists mainly of Methane (CH4) but can also contain other gases such as Butane and Propane.

Oil and gas formation stages. Energy Information AdministrationPeat is a very young form of coal, if left for a long period of time peat will eventually form coal. Peat was formed by glossary decay of plants glossary in some cases trees. These plants accumulated and decayed over hundreds glossary thousands glossary years in waterlogged areas. Peat formed in areas where there was poor drainage. When the last ice-age ended and ice melted it glossary behind glacial glossary such as eskers and moraines.

These features glossary evident in the topography of Ireland, especially the midlands, and lead to poor glossary of the soil.

This poor drainage along with continual growth of vegetation, high glossary of rainfall and a low levels of oxygen lead to the formation of peatlands. Fossil fuels are burned to produce energy. In large power stations they are burned in the presence of oxygen. As small talks fuel burns the heat energy is used to heat water, as it is heated it produces steam which glossary turn rises and drives a turbine.

The energy conversion goes from chemical energy stored in the fuels, to heat glossary as it burns which is converted to kinetic glossary as it drives large turbines and finally this is converted to electrical energy.

The problem with burning fossil fuels is their effect on the environment. As mentioned fossil fuels are Hydrocarbons. When hydrocarbons are burned in the presence of oxygen they release carbon dioxide into the atmosphere. Carbon dioxide is a Greenhouse Gas and is a leading cause of Global Warming.

Ireland has a history of coal mining in areas glossary Leinster including Kilkenny, Carlow and Laois. The Arigna coal mine in Co. Glossary opened in the late 18th century and ran up as far as the 1990's. Today Glossary imports most of its glossary from areas such as Poland. The use of coal for production of electricity is decreasing as shale gas becomes more available.



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