Fossil Fuels

Science / Biology / Fossil Fuels: Fuels that are formed in the Earth from plant or animal remains; e.g., coal, petroleum, and natural gas.

Fossil Record

Science / Biology / Fossil Record: 1. The observed remains of once-living organisms taken as a whole. 2. the album Meet the Beatles. MORE

Alternative Fuels

Business / Agriculture / Alternative Fuels: Substitutes for traditional liquid, oil-derived motor vehicle fuels like gasoline and diesel. Includes methanol, ethanol, biodiesel, compressed natural gas, and others. The alternatives are promoted f MORE

Trace Fossil

Science / Biology / Trace Fossil: Any indication of prehistoric organic activity, such as tracks, trails, burrows, or nests. MORE

Fossil Fuels

Science / Biology / Fossil Fuels: Fuels that are formed in the Earth from plant or animal remains; e.g., coal, petroleum, and natural gas. MORE

Nannofossils

Science / Geology / Nannofossils: A generic term used in reference to very small fossils that are at the limit of resolution by a light microscope. They are therefore studied with electron microscopes and are frequently fossil discoas MORE

Fossil Fuel

Science / Geology / Fossil Fuel: A general term for combustible geologic deposits of carbon in reduced (organic) form and of biological origin, including coal, oil, natural gas, oil shales, and tar sands. MORE

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