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Geography (from Ancient Greek γεωγραφία geōgraphía; combining gê 'Earth' and gráphō 'write') is the study of the lands, features, inhabitants, and phenomena of Earth. [1] Geography is an all-encompassing discipline that seeks an understanding of Earth and its human and natural complexities —not merely where objects are, but also ...
Urban geography is the subdiscipline of geography that derives from a study of cities and urban processes. Urban geographers and urbanists [1] examine various aspects of urban life and the built environment. Scholars, activists, and the public have participated in, studied, and critiqued flows of economic and natural resources, human and non ...
Concepts and Techniques in Modern Geography were produced by the Study Group in Quantitative Methods of the Institute of British Geographers. [3] [4] Each CATMOG publication was written on an individual topic in geography rather than a series of broad topics like traditional textbooks. This à la carte approach allowed only purchasing ...
Physical geography (also known as physiography) is one of the three main branches of geography. Physical geography is the branch of natural science which deals with the processes and patterns in the natural environment such as the atmosphere, hydrosphere, biosphere, and geosphere.
Sikkim is also one of the least densely populated Indian states, with only 86 persons per square kilometre. However, it has a high population growth rate, averaging 12.36% per cent between 2001 and 2011. The sex ratio is 889 females per 1,000 males, with a total of 321,661 males and 286,027 females recorded in 2011.
Topography is the study of the forms and features of land surfaces. The topography of an area may refer to the land forms and features themselves, or a description or depiction in maps. Topography is a field of geoscience and planetary science and is concerned with local detail in general, including not only relief, but also natural, artificial ...
Geometrical optics. Geometrical optics, or ray optics, is a model of optics that describes light propagation in terms of rays. The ray in geometrical optics is an abstraction useful for approximating the paths along which light propagates under certain circumstances. The simplifying assumptions of geometrical optics include that light rays:
The organization was founded on December 29, 1904, in Philadelphia, as the Association of American Geographers, [1] with the American Society of Professional Geographers later amalgamating into it in December 1948 in Madison, Wisconsin. [2] As of 2020, the association has more than 10,000 members, [3] from nearly 100 countries. [4]