raw petroleum
91Hybrid electric vehicle — The Toyota Prius is the world s top selling hybrid car, with cumulative global sales of 2.36 million units by August 2011.[1] A hybrid electric vehicle (HEV) is a type of hybrid vehicle and electric vehicle which combines a conventional internal …
92Oil shale extraction — is an industrial process in which kerogen mdash;a mixture of organic chemical compounds (including hydrocarbons) found in oil shale mdash;is converted into synthetic crude oil through pyrolysis. In pyrolysis, oil shale is heated in the absence of …
93History of trade for the People's Republic of China — Trade has been a very significant factor of the People s Republic of China s economy. In the twenty five years that followed the founding of the People s Republic of China in 1949, China s trade institutions were built into a partially modern but …
94Food vs fuel — is the dilemma regarding the risk of diverting farmland or crops for biofuels production in detriment of the food supply on a global scale. The food vs. fuel or food or fuel debate is internationally controversial, with good and valid arguments… …
95chemical element — Introduction also called element, any substance that cannot be decomposed into simpler substances by ordinary chemical processes. Elements are the fundamental materials of which all matter is composed. This article considers the… …
96technology, history of — Introduction the development over time of systematic techniques for making and doing things. The term technology, a combination of the Greek technē, “art, craft,” with logos, “word, speech,” meant in Greece a discourse on the arts, both… …
97History of trade of the People's Republic of China — Trade has been a very significant factor of the People s Republic of China s economy. In the twenty five years that followed the founding of the People s Republic of China in 1949, China s trade institutions were built into a partially modern but …
98Mining industry of Russia — The mineral industry of Russia is one of the world s leading mineral industries and accounts for a large percentage of the Commonwealth of Independent States production of a range of mineral products, including metals, industrial minerals, and… …
99Peru — Peruvian /peuh rooh vee euhn/, adj., n. /peuh rooh /, n. 1. Spanish, Perú /pe rddooh /. a republic in W South America. 24,949,512; 496,222 sq. mi. (1,285,215 sq. km). Cap.: Lima. 2. a city in N central Indiana. 13,764. 3. a city in N Illinois. 10 …
100Diesel fuel — Diesel oil redirects here. Sometimes diesel oil is used to mean lubricating oil for diesel engines. Diesel fuel (  / …
