COAL -- A Fossil Fuel How Coal Was Formed How We Get Coal How Coal is Transported Types of Coal Where We Get Coal How Coal is Used Coal and the Environment energy calculator links page recent statistics HOW COAL WAS FORMED Coal is a combustible black or brownish-black sedimentary rock composed mostly of carbon and hydrocarbons. It is the most abundant fossil fuel produced in the United States. Coal is a nonrenewable energy source because it takes millions of years to create. The
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Uses of fossil fuel Fossil fuels consist of coal‚ petroleum and natural gas that are found under the earth’s surface‚ formed from billions of years of compression and decomposition of dead plant and animal matter. They are the leading source of energy for the mankind and are used for various purposes like energy for transportation‚ electricity‚ manufacturing process and also used in the manufacturing process of day to day items like plastic. Main fossil fuels are. 1. Coal Coal is
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1.3 Transitional fossils A transitional fossil is any fossilised remains of a life form that has traits common to both a presumed ancestral group and its presumed derived descendant group. Transitional fossils are used as evidence to support evolutionary theory as they are suggested to demonstrate the gradual transition from one species to another through a multitude of changes. In essence‚ the transitional fossils are the remains of the species that have gone extinct‚ and these species are represented
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What fossils tell us This chapter looks at fossils and their formation. Fossils are traces of ancient plants or animals preserved in rocks. The number of fossils and their placement in rocks is called the fossil record. The study of fossils is called palaeontology. Because fossils are buried in rock‚ most of the time they are found only when the rock is dug up‚ worn out or cut away. Fossils may include parts of animals‚ their footprints‚ eggs or nests. Plants and their spores‚ or seeds‚ also make
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autos an additional 100 years? Will we raze our forests for our energy needs? I certainly hope our country will never come to those conclusions. However‚ someone must make a conclusion hopefully toward an alternate fuel source. The fuel source I would propose is biomass fuel derived from hemp. Hemp is the world’s most versatile plant. It actually improves the soil in which it grows‚ without chemical fertilizers‚ while choking out weeds by virtue of its fast dense growth. According to the
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The "fuel cell cars" currently being advertised are being touted as "having no emissions except water." In a limited sense that is‚ in fact‚ true. However‚ if the entire fuel cycle for the car is considered it most certainly is not. The fuel used by the fuel cell is hydrogen‚ very pure hydrogen. Combined with oxygen from the ambient air‚ the fuel cell produces electricity that powers an electric motor and other devices in the vehicle--just like the battery-driven electric vehicles already on the
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Fossil Fuels: Oil Introduction History We are a country that runs on oil. From the gasoline in our cars to the plastic in our computers to the detergents that we put in our dishwashers‚ we rely on oil for our modern way of life. It cannot be understated just how strong of a role it plays in our economy and politics. It is used in tractors that plow and harvest food. It is used to power manufacturing plants and as feedstock in commercial goods. It powers all the trains and trucks that bring goods
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advantages of fuel cells over outdated batteries‚ there are still various controversies around the notion of using fuel. Society does not like to change (maybe try using alter or modify instead of change) their conventions. People get attached to certain things or methods of executing tasks and they refuse to give them up. This phenomenon tends to slow down the progress in technology especially the ones that are radically different from its ancestral technology. When considering fuel cells‚ one of
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will be focused upon in this analysis is hydrogen as a source of fuel‚ and the technology leading the way to making it a reality. This technology would affect everyone in one way or another if correctly used. So we must ask if this technology is beneficial to us‚ how it might hurt us‚ and whether it is worth pursuing from an ethical stance. Background: Hydrogen has already been under the micro scope for many years as an alternative fuel source to us because of its abundance and power. We have simply
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paleontologist‚ now you can. Fossils are the oldest rocks on earth. They can be anything that was over 4‚000 years ago. Fossils are what tell us what come before humans a million years ago. Do you ever stop and think there might be a T. Rex under your house. Well fossils preserved remains of organisms. Fossils can be over 4‚000 or a million years old. Usual the preserves are of animals. Fossils arranged from the size of a mouse to a ten story building. This is how all those fossils are made. The dead animal
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