Fossil Fuels Definition
Fossil Fuels Definition . Fossil fuel definition, any combustible organic material, as oil, coal, or natural gas, deriv…
Geothermal Energy Definition
Geothermal Energy Definition . The leftover heat from the formation of our. Geothermal energy = earth heat. What is geo…
Non Renewable Definition
Non Renewable Definition . Nonrenewable energy sources are also known as conventional energy sources. Resources / types…
Petroleum Definition
Petroleum Definition . Petroleum is a complex mixture of alkanes (paraffin or acyclic saturated hydrocarbons), several …
Coal Definition
Coal Definition . A combustible mineral used as fuel: Coal, when burnt, gives off almost a third more carbon dioxide pe…
Glossary Definition
Glossary Definition . A biology textbook might have a glossary in the back, so you can quickly look up all those techni…
Minerals Definition
Minerals Definition . There are 19 or more that form the mineral composition of the body; Black's law dictionary (1…
Secondary Source Definition
Secondary Source Definition . A secondary source is one that gives information about a primary source. Secondary source…