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  2. State shapes - Wikipedia

    en.wikipedia.org/wiki/State_shapes

    The shape of a state is determined by the political boundaries and geography that determine its territory, and that shape impacts the politics and economies of the state. [1] The six categories of state shapes are: compact; elongated or attenuated; fragmented; prorupted or protruded; perforated; and compound or complex. [2] [3] [4]

  3. Relative dating - Wikipedia

    en.wikipedia.org/wiki/Relative_dating

    Relative dating by biostratigraphy is the preferred method in paleontology and is, in some respects, more accurate. [1] The Law of Superposition, which states that older layers will be deeper in a site than more recent layers, was the summary outcome of 'relative dating' as observed in geology from the 17th century to the early 20th century.

  4. Modifiable areal unit problem - Wikipedia

    en.wikipedia.org/wiki/Modifiable_areal_unit_problem

    Therefore, the association between variables depends on the size of areal units for which data are reported. Generally, correlation increases as areal unit size increases. The zoning effect describes variation in correlation statistics caused by the regrouping of data into different configurations at the same scale (areal shape). [8]

  5. Glossary of geography terms (A–M) - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_geography_terms...

    2. A place regarded as remote, underdeveloped, or culturally backward relative to other places; a place or state of stagnation, in which little or no economic, social, or intellectual progress occurs. 3. A secluded, peaceful place. badia In the Middle East, an arid area characterized by low or irregular precipitation and little or no vegetation.

  6. Depth perception - Wikipedia

    en.wikipedia.org/wiki/Depth_perception

    Perspective, relative size, occultation and texture gradients all contribute to the three-dimensional appearance of this photo. Depth perception is the ability to perceive distance to objects in the world using the visual system and visual perception. It is a major factor in perceiving the world in three dimensions

  7. Gall–Peters projection - Wikipedia

    en.wikipedia.org/wiki/Gall–Peters_projection

    In particular, he criticized that the Mercator projection causes wealthy Europe and North America to appear very large relative to poorer Africa and South America. [ 5 ] : 155 These arguments swayed many socially concerned groups to adopt the Gall–Peters projection, including the National Council of Churches [ 8 ] and the magazine New ...

  8. Tobler's first law of geography - Wikipedia

    en.wikipedia.org/wiki/Tobler's_first_law_of...

    The First Law of Geography, according to Waldo Tobler, is "everything is related to everything else, but near things are more related than distant things." [1] This first law is the foundation of the fundamental concepts of spatial dependence and spatial autocorrelation and is utilized specifically for the inverse distance weighting method for ...

  9. Proportional symbol map - Wikipedia

    en.wikipedia.org/wiki/Proportional_symbol_map

    A second tendency is for users to interpret relative sizes: a symbol that is twice as large (in area or length) will be interpreted as representing twice the quantity. The absence of a circle would be interpreted as the complete absence of the phenomenon, and negative values cannot be shown.