Petroleum
Esquema
Jerarquía
<materials by composition> > organic material > <petroleum and petroleum products>
Descripción
Complex mixture of hydrocarbons that occurs naturally beneath the earth's surface, viscous yellow to black in color. Petroleum is refined (i.e.,separated by distillation) into useable fractions.
URI original del concepto
Otros términos
- petróleo [es]
- petrolio [it]
- pétrole [fr]