Fossil fuel embedded energy is still photosynthetic in origin. Terrestrial plants, on the other hand, tended to form coal and methane. Many of the coal fields date to the Carboniferous period of Earth's history. Terrestrial plants also form type III kerogen, a source of natural gas. There is a wide range of organic, or hydrocarbon, compounds in any given fuel mixture. The specific mixture of hydrocarbons gives a fuel its characteristic properties, such as boiling point, melting point, density, viscosity, etc. Some fuels like natural gas, for instance, contain only very low boiling, gaseous components. Others such as gasoline or diesel contain
The Secret Life of Plants the basis for the 1979 documentary of the same name, directed by Walon Green and featuring a soundtrack by Stevie Wonder, later released as "Journey through the Secret Life of Plants". The film made use of time-lapse photography (where plants are seen growing in a few seconds, creepers reach out to other plants and tug on them, mushrooms and flowers open). The film was originally distributed by Paramount Pictures. The Secret Life of Plants The Secret Life of Plants (1973) is a book by Peter Tompkins and Christopher Bird. The book documents controversial experiments that claim to reveal unusual phenomena