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Read essays samples written by our professional writers and feel free to use them as a source of inspiration and ideas for your own academic work.
Coal is a fossil fuel which is black or brownish-black in color, and is a sedimentary rock that has high levels of hydrocarbons and carbons (Gustafson, 2007). Coal has the stored energy of plants which lived in swamps millions of years ago (Gustafson, 2007). Types of coal include anthracite, bituminous,...
Introduction The current global oil market is facing a high increase in supply, which is creating problems for nations that rely on oil exports for their government spending. This is a problem for Russia, as the country has depended on high oil prices to prop up the economy and allow...
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