- Fossil fuels are derived from which of the following sources?
organic matter trapped in sedimentary rock
- Oil and gas are mainly derived from which of the following sources?
phytoplanktonic material found in marine basins
- What is one difference between a common organic fuel such as wood, and a fossil fuel?
Fossil fuels make more efficient fuels
- The quality of coal, called its rank, is a measure of which of the following characteristics?
Amount of carbon in the coal
- Natural gas is composed mainly of which type of gas?
methane
- The greatest concentration of oil is found in which of the regions of the world given below?
the Middle East
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