Earth's gravity — Earth s gravity, denoted by g , refers to the gravitational attraction that the Earth exerts on objects on or near its surface. Its strength is usually quoted in terms of the acceleration it gives to falling bodies (acceleration due to gravity),… … Wikipedia
Earth's atmosphere (Meteorology) — Earth s atmosphere (and its mechanics) can often be described in meteorology with very particular and specific terms. While meteorologists do use the more commonly understood standard terms for the earths atmospheric layers, these definitions are … Wikipedia
Level — Lev el (l[e^]v [e^]l), n. [OE. level, livel, OF. livel, F. niveau, fr. L. libella level, water level, a plumb level, dim. of libra pound, measure for liquids, balance, water poise, level. Cf. {Librate}, {Libella}.] 1. A line or surface to which,… … The Collaborative International Dictionary of English
Level of the sea — Level Lev el (l[e^]v [e^]l), n. [OE. level, livel, OF. livel, F. niveau, fr. L. libella level, water level, a plumb level, dim. of libra pound, measure for liquids, balance, water poise, level. Cf. {Librate}, {Libella}.] 1. A line or surface to… … The Collaborative International Dictionary of English
Level 9 Computing — Level 9 was a British computer adventure game company which produced some of the most advanced games of the 1980s. Founded in 1981 by Michael, Nicholas and Pete Austin, the company produced about 20 games for BBC Micro, Nascom, ZX Spectrum,… … Wikipedia
Earth Rangers — is a registered non profit organization located in Woodbridge, Ontario, Canada. Founded in 1999 by Robert Schad, Earth Rangers focuses on providing environmental education to youth through school assemblies and hands on action programs.Earth… … Wikipedia
Earth science — (also known as geoscience, the geosciences or the Earth Sciences), is an all embracing term for the sciences related to the planet Earth [ [http://wordnet.princeton.edu/perl/webwn?s=earth%20science Wordnet Search: Earth science] ] . It is… … Wikipedia
Earth sheltering — is the architectural practice of using earth against building walls for external thermal mass, to reduce heat loss, and to easily maintain a steady indoor air temperature. Earth sheltering is popular in modern times among advocates of passive… … Wikipedia
Earth Day — is one of two observances, both held annually during spring in the northern hemisphere, and autumn in the southern hemisphere. These are intended to inspire awareness of and appreciation for the Earth s environment. The United Nations celebrates… … Wikipedia
Earth Hour — is an annual international event created by WWF (The World Wide Fund for Nature/World Wildlife Fund), held on the last Saturday of March, that asks households and businesses to turn off their non essential lights and electrical appliances for one … Wikipedia