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Oil
A black, thick liquid used to produce fuel. It is formed from the decayed remains of plants or animals, which break down into liquids and gases under extreme heat and pressure under the Earth’s surface. Oil is extracted from the Earth through drilling and pumping.

Oil
©Andrew Penner
Word of the day
Richter >> A scale to measure the strength of earthquakes. The range is usually from 0 to 9, and each increase in number means that the earthquake is 32-times stronger!