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  2. AP Human Geography - Wikipedia

    en.wikipedia.org/wiki/AP_Human_Geography

    The first section consists of 60 multiple choice questions and the second section consists of 3 free-response questions. The sections are 60 and 75 minutes long, respectively. It is not necessary to answer the free-response questions in essay form; instead, points are awarded on certain keywords, examples, and other vital aspects.

  3. Push and pull factors in migration - Wikipedia

    en.wikipedia.org/wiki/Push_and_pull_factors_in...

    Push and pull factors in migration according to Everett S. Lee (1917-2007) are categories that demographers use to analyze human migration from former areas to new host locations. Lee's model divides factors causing migrations into two groups of factors: push and pull.

  4. Slab (geology) - Wikipedia

    en.wikipedia.org/wiki/Slab_(geology)

    [11] [12] Marianas Trench is an example of a deep slab, thereby creating the deepest trench in the world established by a steep slab angle. [13] Slab breakoff occurs during a collision between oceanic and continental lithosphere, [ 14 ] allowing for a slab tear; an example of slab breakoff occurs within the Himalayan subduction zone.

  5. Rural flight - Wikipedia

    en.wikipedia.org/wiki/Rural_flight

    Rural exodus can also follow an ecological or human-caused catastrophe such as a famine or resource depletion. These are examples of push factors. People can also move into town to seek higher wages, educational access and other urban amenities; examples of pull factors.

  6. Slab pull - Wikipedia

    en.wikipedia.org/wiki/Slab_pull

    Slab pull is a geophysical mechanism whereby the cooling and subsequent densifying of a subducting tectonic plate produces a downward force along the rest of the plate. In 1975 Forsyth and Uyeda used the inverse theory method to show that, of the many forces likely to be driving plate motion, slab pull was the strongest. [ 1 ]

  7. Strike and dip - Wikipedia

    en.wikipedia.org/wiki/Strike_and_dip

    The angle of the intersection with the green plane is the red plane's apparent dip in the northward direction . When measuring or describing the attitude of an inclined feature, two quantities are needed. The angle the slope descends, or dip, and the direction of descent, which can be represented by strike or dip direction. [4]

  8. Slope stability - Wikipedia

    en.wikipedia.org/wiki/Slope_stability

    It is important for many civil and geotechnical engineers to know the angle of repose to avoid structural and natural disasters. As a result, the application of retaining walls can help to retain soil so that the angle of repose is not exceeded. [5] The angle of repose and the stability of a slope are impacted by climatic and non-climatic factors.

  9. Five themes of geography - Wikipedia

    en.wikipedia.org/wiki/Five_themes_of_geography

    A place is an area that is defined by everything in it. It differs from location in that a place is conditions and features, and location is a position in space. [4] Places have physical characteristics, such as landforms and plant and animal life, as well as human characteristics, such as economic activities and languages. [1]