Fuel formed under the earths surface by the decomposition of organic matter is:
Fuel formed under the earth's surface by the decomposition of organic matter is called ___ fuel.
Fuel formed under the earth's surface by the decomposition of organic matter is called ___ .
What are fuels formed under the earth's surface by the decomposition of organic matter called?
Which of the following fuel is formed under the earth's surface by decomposition?
Fuel formed by natural processes, such as anaerobic decomposition of buried dead organisms, is called ___ fuel.