depths
61Acteonidae — Taxobox name = Acteonidae image width = 250px image caption = Adam s baby bubble, Rictaxis punctostriatus regnum = Animalia phylum = Mollusca classis = Gastropoda subclassis = Orthogastropoda superordo = Heterobranchia ordo = Opisthobranchia… …
62Nitrogen narcosis — Inert gas narcosis [Nitrogen narcosis] Classification and external resources Divers breathe a mixture of oxygen, helium and nitrogen for deep dives to avoid the effects of narcosis. A cylinder label shows the maximum operating depth and mixture… …
63Deep-sea exploration — is the investigation of physical, chemical, and biological conditions on the sea bed, for scientific or commercial purposes. Deep sea exploration is considered as a relatively recent human activity compared to the other areas of geophysical… …
64depth — noun 1 distance from top to bottom or from back to front; deep part of sth ADJECTIVE ▪ considerable, great ▪ species that live at considerable depth ▪ They go down to great depths below the surface. ▪ maximum …
65depth — [[t]de̱pθ[/t]] ♦♦♦ depths 1) N VAR: oft amount in N, with poss, N of amount The depth of something such as a river or hole is the distance downwards from its top surface, or between its upper and lower surfaces. The smaller lake ranges from five… …
66paracanthopterygian — ▪ fish Introduction any member of the superorder Paracanthopterygii, a predatory, primarily marine group that forms one of about six major branches of the Teleostei (teleost), or bony fishes, the dominant modern aquatic vertebrates.… …
67volcano — /vol kay noh/, n., pl. volcanoes, volcanos. 1. a vent in the earth s crust through which lava, steam, ashes, etc., are expelled, either continuously or at irregular intervals. 2. a mountain or hill, usually having a cuplike crater at the summit,… …
68Cold seep — Marine habitats Tube worms are among the dominant species in one of four cold seep community types in the Gulf of Mexico. Littoral zone …
69KABBALAH — This entry is arranged according to the following outline: introduction general notes terms used for kabbalah the historical development of the kabbalah the early beginnings of mysticism and esotericism apocalyptic esotericism and merkabah… …
70Rings of Uranus — The scheme of Uranus s ring moon system. Solid lines denote rings; dashed lines denote orbits of moons. The planet Uranus has a system of rings intermediate in complexity between the more extensive set around Saturn and the simpler systems around …
