cause+to+decay
101Tooth — Infobox Anatomy Name = Teeth Caption = An adult human s teeth. Caption2 = CGI posterior view of teeth taken from inside of mouthTeeth (singular, Tooth) are small whitish structures found in the jaws (or mouths) of many vertebrates that are used… …
102Nuclear and radiation accidents — This article is about nuclear and radiation accidents in general. For a list of military nuclear accidents, see List of military nuclear accidents. For a list of civilian nuclear accidents, see List of civilian nuclear accidents. For a discussion …
103Decline of the Roman Empire — This article is about the historiography of the decline of the Roman Empire. For a description of events, see Roman Empire. For the book by Edward Gibbon, see The History of the Decline and Fall of the Roman Empire. For the film, see The Fall of… …
104wood — 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… …
105Wood — /wood/, n. 1. Grant, 1892 1942, U.S. painter. 2. Leonard, 1860 1927, U.S. military doctor and political administrator. * * * I Hard, fibrous material formed by the accumulation of secondary xylem produced by the vascular cambium. It is the… …
106Background radiation — This article is about ionizing radiation. For microwave background radiation from space, see Cosmic background radiation and cosmic background. Thermal radiation emitted by Earth is not considered in this category because it is not ionizing.… …
107Space debris — populations seen from outside geosynchronous orbit (GEO). Note the two primary debris fields, the ring of objects in GEO, and the cloud of objects in low earth orbit (LEO) …
108Oral ecology — Adult mouths may contain 500 to 1,000 different types of bacteria as part of the human flora and oral microbiology, but about 100 to 200 species may live in them at any given time.[1] Those who care for their teeth and have a relatively clean… …
109Film preservation — Stacked containers filled with reels of film stock. The film preservation, or film restoration, movement is an ongoing project among film historians, archivists, museums, cinematheques, and non profit organizations to rescue decaying film stock… …
110isotope — isotopic /uy seuh top ik/, adj. isotopically, adv. /uy seuh tohp /, n. Chem. any of two or more forms of a chemical element, having the same number of protons in the nucleus, or the same atomic number, but having different numbers of neutrons in… …
