fuels derived from the remains of ancient organisms - examples are oil, natural gas, coal
natural gas, petroleum, coal and any form of solid, liquid or gaseous fuel derived from such materials for the purpose of generating heat.
Fuels created naturally beneath the Earth's surface over long periods of time, from the remains of once-living things, eg coal, oil, and natural gas.
nonrenewable energy sources that come from fossilized plants and animals and cannot be replenished; examples: coal, oil, natural gas
Fuels that are derived from decayed plant and animal matter, that over millions of years, under pressure and heat, have become petroleum, coal, natural gas, etc.. There is a finite amount of such resources, and therefore they are called non-renewable fuels.
naturally occurring fuels of an organic nature, such as coal, crude oil, and natural gas
Fuels that originate from the remains of living things, such as coal, oil, natural gas, and peat.
Energy sources, mainly crude oil, coal, and natural gas, that are derived from prehistoric photosynthetic production of organic matter on Earth.
Coal, Oil and Gas are called "fossil fuels" because they have been formed from the fossilised remains of prehistoric plants and animals. They provide around 66% of the world's electrical power, and 95% of the world's total energy demands (including heating, transport, electricity generation and other uses).
There are coal, crude oils, oil shales, tar sands and natural gases such as butane, ethane, methane which occur naturally from the decomposition of plant and sea and land organisms over millions of years. These natural resources contain stored energy from the sun which is released upon combustion. These fuels also release various types of pollutants such as sulfur dioxide, carbon dioxide and nitrogen dioxide when burned. [Living in the Environment; Miller, G. Tyler; Wadsworth Publishing Company; Belmont, California; pages 476-486; 1992.] [Atmospheric Change; Graedel, T. E.; W. H. Freeman and Company; New York; page 430; 1993.
Fossil fuels consist of plants and parts of plants which sank into the earth's crust millions of years ago and were transformed into fossil material (coal, gas and oil). Fossil fuels are an example of stored resources. When fossil fuels are burnt, carbon dioxide is produced, among other things. As this carbon is not a natural part of the biological cycle, the atmosphere receives additional carbon dioxide which helps to produce global warming. During incineration, bound substances such as sulphur and heavy metals are released and increase the natural levels in the environment.
coal, oil, and natural gas that formed in the ground over millions of years from the remains of ancient plants and animals.
fuels formed millions of years ago from decayed organisms. Oil, coal and natural gas are all fossil fuels. See also nonrenewable energy.
Fuels like coal, gas and oil formed in the Earth's geological past
coal, oil, and natural gas; so-called because they are the remains of ancient plant and animal life
Fuels—such as coal, natural gas, and crude oil— that come from the compressed remains of ancient plants and animals. Gasoline and diesel are fossil fuels that can be burned in internal combustion engines to power everything from jet planes to automobiles to railroad locomotives.
The minerals which human society require to generate most of our energy needs. Coal, oil (which is used to produce petroleum), natural gas, methane and diesel are all examples of fossil fuels. Fossil fuels consist of a long chemical structure that contains carbon. When oxidised with oxygen (burnt), carbon dioxide (CO2) is given off as a waste gas. CO2 is a chief greenhouse gas. Fossil fuels are most commonly used to generate electricity and power motor vehicles.
substances found below the surface of the earth that can be burned to create energy. The three primary fossil fuels are coal, oil, and natural gas.
Organic molecules derived from partially decayed plant and animal matter, produced primarily during the Carboniferous period; includes oil, gas, and coal.
fuels created at the same time as the fossils around them, about 230 to 180 million years ago, e.g. coal, oil and natural gas, also known as "non-renewable" fuels
Fuels derived from ancient organic remains. Fossil fuels result from the incomplete decomposition of organic material. Since the rate at which these fuels are consumed exceeds that of their formation, they are considered to be non-renewable resources. They also represent long term storage of carbon removed from the atmosphere whose oxidation Is completed by combustion, which returns it to the atmosphere as carbon dioxide.
A general term for buried combustible geologic deposits of organic materials, formed from decayed plants and animals that have been converted to crude oil, coal, natural gas, or heavy oils by exposure to heat and pressure in the earth's crust over hundreds of millions of years.
coal, oil, and natural gas formed from the remains of ancient plants and animal life..... return
Oil, coal, and natural gas, burning fossil fuels contributes to the enhanced greenhouse effect.
general term referring to fuels that have been generated by "fossilized" plant and animal matter over millions of years, i.e. coal, oil, and natural gas.
Coal, oil, and natural gas are known as fossil fuels because they were formed from the fossilized remains of animals or plants that lived long ago.
Carbon-based fuels from fossil carbon deposits, including coal, oil, and natural gas. Back up
fuels formed over a long time from material containing carbon. The main fossil fuels are coal, oil and natural gas.
Fuels formed over a long time deep in the Earth from the remains of dead plants and animals. The main fossil fuels are coal, oil and natural gas.
Sources of energy such as coal, oil and natural gas.
Fuels made from the remains of ancient plants and animals, such as coal, oil and natural gas. Energy
buried deposits of decayed plants and animals that, over millions of years, have been converted to oil, coal, or natural gas by heat and pressure in the earth's crust. Fossil fuels provide most of our energy.
Fossil fuels are fuels containing carbon – coal, oil and gas – that were formed over millions of years through the decay, burial and compaction of rotting vegetation on land, and of marine organisms on the sea floor. Burning fossil fuels is the major way in which humans add to the greenhouse gases in the atmosphere.
fuel such as coal or oil, that was formed over millions of years from the remains of animals or plants
fuels such as petroleum or coal formed over millions of years from the remains of ancient organic materials.
Caron-based fuels such as coal, oil, and natural gas formed from remnants of ancient plant and animal life. Fossil fuels are limited natural resources.
coal, oil, and natural gas - materials composed of the remains of plants or animals that covered Earth millions of years ago and are today burned for fuel.
coal, oil, and natural gas, which were formed from the fossilized remains of ancient organisms.
Coal, oil and gas - all fuels that were formed from the remains of dead plants and animals.
coal, petroleum (oil, natural gas and asphalt) and related organic materials that have formed over geologic time. reenhouse effect: the warming up of the lower atmosphere due to the accumulation of greenhouse gases (carbon dioxide, methane, chlorofluorocarbons) that trap heat near the surface of the Earth.
carbon based remains of organic matter (i.e. ancient plant and animal life) that has been geologically transformed into coal, oil and natural gas.
oil, coal, and natural gas formed from plants and animals that existed millions of years ago
Any naturally occurring fuel of an organic nature formed by the decomposition of plants or animals; includes coal, natural gas, and petroleum.
Non-renewable natural resources that are used for energy production e.g. oil, coal and gas.
Fuels formed eons ago from decayed plants and animals. Oil, coal and natural gas are such fuels.
a collective term for coal, petroleum and natural gas, which are used for energy production through combustion. They are called fossil fuels because they are made of fossilized, carbon-rich plant and animal remains. These remains were buried in sediments millions of years ago and, over geological time, have been converted to their current state. Fossil fuels can be extracted from the sediments by humans millions of years after their deposition and their stored energy can be used as fuel when it is burned.
Fuels (oil, coal and gas) formed eons ago from decayed plants and animals.
Petroleum, natural gas, and coal created by geological forces from organic wastes and dead bodies of formerly living biological organisms.
Fuels found in earth strata, deriving from organisms of an earlier geological age. Fossil fuels include oil, natural gas, coal and peat.
Hydrocarbon-based fuels formed by the decomposition of (mainly prehistoric) flora and fauna. Examples include oil, natural gas, coal, tar sands and peat.
Fuels such as oil, natural gas, and coal are fossil fuels believed to have been formed in the ground from the decayed remains of plants and animals over millions of years.
Energy sources formed by the decay of plants, dinosaurs, and other animals over millions of years; coal, oil, and natural gas are fossil fuels.
Fossil fuels, including coal, petroleum, etc., are derived from plants and animals buried for so long and under such heat and pressure that they became minerals. The energy from fossil fuels comes from the high energy bonds formed between one carbon atom and another, as well as those formed between carbon and hydrogen atoms. These fuels are limited in total quantity and are non-renewable.
Fuels derived from fossilised organic matter such as coal, oil and petroleum.
Carbon or hydrocarbon fuels, derived from what was living material, and found underground or beneath the sea. The most common forms are coal, oil and natural gas. They take millions of years to form. Their energy is only released upon burning, when the carbon and hydrogen within them combine with the oxygen in air to form carbon dioxide (CO2 ), or carbon monoxide (CO) and water (H2O). Other elements within the fuels (such as sulfur or nitrogen) are also released into the air after combining with oxygen, causing further pollution with SO2 and nitrogen oxide gases. In the case of coal, ash particles are also a problem.
fuels from natural substances such as coal, petroleum and natural gas. They are made of fossilized, carbon-rich plant and animal remains, that were buried in sediments and compressed over geologic time, slowly being converted to fuel. Fossil fuels are extracted from the sediment million of years after being deposited. When burned, the stored energy can be used as fuel. four R's: reduce (at source); reuse; recycle and recover (resources from waste).
Fossil fuels ( oil, coal, and natural gas) come from the long-term decomposition of plant and animal matter from millions of years ago. These fossil fuels are the main sources of energy used by Americans today to generate electricity, heat, and fuel for transportation. Because fossil fuels cannot be replenished on a human time scale once they are extracted and burned, they are a non-renewable resource. The byproducts of fossil fuel combustion, including carbon dioxide (CO2) and methane, are emissions that increase the “greenhouse†effect that causes global climate change. These emissions also cause many direct air pollution problems like poor air quality and acid rain. Read more about fossil fuels’ environmental impacts.
A fuel such as oil, which comes from decomposed living matter from another geologic era.
coal, natural gas, and petroleum; energy sources obtained from deposits of ancient organic remains
Fuels that are formed in the Earth from plant or animal remains; e.g., coal, petroleum, and natural gas.
Any naturally occurring organic fuel, such as petroleum, coal, and natural gas. These fuels are limited in total quantity and are non-renewable.
buried deposits of organic materials that have been compressed over millions of years into crude oil, coal or natural gas.
nonrenewable energy that comes from the decay of over millions of years. Examples are:c coal, natural gas, and coal.
Coal, natural gas, and petroleum products (such as oil) formed from the decayed bodies of animals and plants that died millions of years ago. A nonrenewable source of energy.
Fuels such as oil, natural gas, and coal that are made from decayed plants and animals that lived millions of years ago. These fuels are make of hydrogen and carbon (hydrocarbons).
Fuels like coal, oil and natural gas that we rely on for the majority of our energy.
deposits of organic matter that have been altered over geologic time (since the Earth's formation) and can be burned for energy; for example, coal, crude oil, and natural gas.
Fuels originating from organic material laid down millions of years ago, including oil, coal, and natural gas.
General term for any hydrocarbon that may be used as a fuel including coal, oil, natural gas, bitumen from tar sands, and shale oil.
Fuels formed in the ground from the remains of dead plants and animals. It takes millions of years to form fossil fuels. Oil, natural gas, and coal are fossil fuels.
The remains or traces of prehistoric plants or animals formed in the geological past and removed from the earth in the form of oil, gas and coal.
Fuels from the remains of plants or ancient life.
such as coal, oil, and natural gas are created by the decomposition of ancient animal and plant remains. They are finite (limited) resources, and release carbon dioxide and other gases when burned. [insert graph of the fossil fuel age spike
Fossil fuels are the nation's principal source of electricity. The popularity of these fuels is largely due to their low costs. Fossil fuels come in three major forms - coal, oil, and natural gas. Because fossil fuels are a finite resource and cannot be replenished once they are extracted and burned, they are not considered renewable.
hydrocarbon deposits such as coal derived from living matter of a previous geologic time and used for fuel.
Oil and coal are known as fossil fuels because they are formed under great pressure from the remains of ancient plants that lived millions of years ago.
Fuels that were formed from the remains of plants and animals that lived millions of years ago.
Coal, oil, petroleum, and natural gas and other hydrocarbons are called fossil fuels because they are made of fossilized, carbon-rich plant and animal remains. These remains were buried in sediments and compressed over geologic time, slowly being converted to fuel.
Solid, liquid or gaseous fuels formed in the ground over millions of years by chemical and physical changes in plant and animal residues under high temperature and pressure, e.g. oil, natural gas and coal are fossil fuels.
Biological materials which have been subjected to long term geological effects. i.e coal, oil natural gas and peat
Materials that contain hydrocarbons which are used for heat or power and produce carbon dioxide when burnt. Materials such as natural gas, coal and oil.
Fuel derived from deposits of organic material that have experienced decomposition and chemical alteration under conditions of high pressure. These nonrenewable forms of bioenergy include petroleum, coal, peat, natural gas, and their derivatives.
Carbon-rich fuel (coal, oil and natural gas) formed from the remains of ancient animals and plants. Their combustion is considered to contribute to the 'greenhouse effect'.
Substances such as oil, coal, and natural gas that are formed underground by the slow breakdown of organic matter.
Fossil fuels have been created over millions of years by the decay and compression of living things, particularly plants. Coal, gas and oil are fossil fuels. Useful products from oil
Non-renewable resources such as coal and oil used for power generation, which can cause pollution.
Includes coal, oil, and natural gas. Fossil fuels are derived from prehistoric plant and animal materials that were exposed to high temperatures and pressure.
Carbon-rich fuel formed from the remains of ancient animals and plants. Coal, oil, and natural gas are all fossil fuels.
Fossil fuels are the remains of plant and animal life that are used to provide energy by combustion; coal, oil, natural gas.
Fuels formed in the ground from the decayed remains of prehistoric plants and animals. Some examples are oil, natural gas, and coal.
are coal, natural gas and fuels made from crude oil (such as petrol and diesel).
Carbon-based fuels that produce carbon dioxide when they are burned. The main fossil fuels are coal, petroleum (oil), refined petroleum products like gasoline, and natural gas. ()
Fuels that are formed underground from the remains of dead plants and animals. i.e. oil, natural gas, and coal are fossil fuels.
any combustible organic material, as oil, coal, or natural gas, derived from the remains of former life. G - N
coal, natural gas, LPG and fuels derived from crude oil (including petrol and diesel). They have been formed over long periods of time from ancient organic matter
Fuels based on organic carbon and hydrogen compounds deposited in sediments or rock deposits – mainly coal, oil and fossil gas.
come from decayed plant and animal matter buried under layers of earth hundreds of millions of years ago. Their energy is released by burning. Coal, oil and natural gas are all fossil fuels. Together they account for three-fourths of the electricity generated in the United States today. Fossil fuels are nonrenewable.
Carbon based compounds such as coal, oil and gas formed over millions of years.
the remains of once-living plants and animals that are burned to release energy. Examples: coal, oil, and natural gas.
Combustible materials derived from the long-term decomposition of organic matter. Fossil fuels comprise coal, oil, and natural gas. The fuels are rich in carbon and high in energy content. Other minor constituents are sulfur and nitrogen.