they are boring for oil
51Radioactive waste — 2007 ISO radioactivity danger logo, designed in part for long term radioactive waste depositories which might survive into a far future time in which all knowledge of the meaning of present common radiation danger symbols and signs has been lost… …
52List of Beavis and Butt-head episodes — The following is an episode list for the MTV animated television series Beavis and Butt head. The series has its roots in 1992 when Mike Judge created two animated shorts Frog Baseball and Peace, Love Understanding which were later aired on… …
53plant disease — ▪ plant pathology Introduction an impairment of the normal state of a plant that interrupts or modifies its vital functions. All species of plants, wild and cultivated alike, are subject to disease. Although each species is… …
54Superman — This article is about the superhero. For other uses, see Superman (disambiguation). Superman …
55Magnetometer — A magnetometer is a measuring instrument used to measure the strength or direction of a magnetic field either produced in the laboratory or existing in nature. Some countries such as the USA, Canada and Australia classify the more sensitive… …
56Cylinder (engine) — Illustration of an engine cylinder with a cross section view of the piston, connecting rod, valves and spark plug. A cylinder is the central working part of a reciprocating engine or pump, the space in which a piston travels. Multiple cylinders… …
57History of coal mining — Due to its abundance, coal has been mined in various parts of the world throughout history and continues to be an important economic activity today. Compared to wood fuels, coal yields a higher amount of energy per mass and could be obtained in… …
58Tropical Asia — Through a crop based biodiversity, natural resources and animals (birds, fruits, and forests), Tropical Asia is economically and physiogeographically rich. cite web|url=http://www.bydesign.com/fossilfuels/choice/html/ipccc6 tropical… …
59List of Doctor Who - Battles in Time Comic Stories — Doctor Who Battles in Time is a fortnightly magazine and card game based on the British television series Doctor Who, each issue containing a four page comic story. Occasionally these are stand alone stories but more often they fit into story arc …
60wood — wood1 woodless, adj. /wood/, n. 1. the hard, fibrous substance composing most of the stem and branches of a tree or shrub, and lying beneath the bark; the xylem. 2. the trunks or main stems of trees as suitable for architectural and other… …
