SS 3 Geography (1st, 2nd & 3rd Term)

Geograpphy Sec Sch

WEST AFRICA (POPULATION)

Population is defined as the number of people living in an area at a particular time. The population of West Africa is not evenly distributed. Some areas are densely populated, some are moderately populated and others are sparsely populated. AREAS OF DENSE POPULATION: These include Lagos, Kano, Accra, Abidjan, Freetown, Monrovia, Dakar, etc. AREAS OF […]

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Geograpphy Sec Sch

BUSH FALLOWING IN WEST AFRICA

BUSH FALLOWING IN WEST AFRICA Bush fallowing is a system of farming or the cultivation of one piece of land for some years before the farmer leaves the piece of land to cultivate another in order to allow the former to regain lost nutrients.  Favourable Conditions Necessary for Bush Fallowing (i)         Abundance of large area

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Geograpphy Sec Sch

Geographic Information System: Application, Problems & Data Representation

A Geographic Information System (GIS) is a powerful tool used to capture, store, manipulate, analyze, and present spatial and geographic data. It combines hardware, software, and data to enable users to visualize, interpret, and understand information related to specific locations on the Earth’s surface. At its core, GIS uses geographic data, which includes both spatial

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Geograpphy Sec Sch

SATELLITE REMOTE SENSING

Remote Sensing is defined as the act of obtaining information about an object without being in direct contact with the object. A satellite is an artificial body placed in orbit around the Earth or on another planet to collect information or for communication. Satellite remote sensing is a satellite that studies the earth’s surface and

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Geograpphy Sec Sch

TOURISM | FACTORS & IMPORTANCE

What is Tourism? Tourism is the process which involves the visiting of people to places of interest for pleasure, relaxation, entertainment or education. Tourism refers to the activities and industry associated with traveling for leisure, recreation, or business purposes to destinations outside one’s usual environment. It involves individuals or groups of people visiting places away

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Geograpphy Sec Sch

WORLD TRADE

Trade is the buying and selling of goods and services between one region and another, within the same country or between one country and another.  The former is known as internal trade while the latter is called international trade.   Types of Trade International Trade This trade is divided into two groups.  They are: Import

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Geograpphy Sec Sch

ECONOMIC CO-OPERATION OF WEST AFRICA

International Economic Co-operation of West African state (ECOWAS) The economic community of West African states (ECOWAS) is a sub-regional organization formed by West African countries mainly to promote co-operation and development in all economic fields and to contribute to the progress and development of the African continent.                                                       ORIGIN OF ECOWAS The treaty

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Geograpphy Sec Sch

CLIMATIC CHANGE

Climate Change Meaning and Nature of Climate Change Climatic change refers to large scale alteration in the normal cycle of weather over pronounced time or duration.  This change or alteration is expressed in the irregularities (anomalies) of the cycle or regimes of major elements such as rainfall, solar radiation, temperature, pressure patterns and all-other elements

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Geograpphy Sec Sch

MASS MOVEMENT

Mass movement can be defined as the movement of weathered materials (regolith) on slope under the force of gravity.  It can also be referred to as the movement of rock materials from one place to another under influence of gravity.                     FACTORS THAT AFFECT MASS MOVEMENT These are factors that affect mass movement Gradient

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Geograpphy Sec Sch

WEATHERING

Weathering is the disintegration and decay of rocks which is caused by forces of weather such as frost, rain and temperature changes. It can also be defined as the process by which rocks are broken down into smaller fragments by weather forces/atmospheric forces. It is a process of rocks breaking and decaying which are caused

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Geograpphy Sec Sch

DENUDATIONAL PROCESSES

Denudation is the process of lowering or sculpturing the earth surface by the activities of certain agents called denudation.  The word denude is an original Greek word for reduction, that is, lowering or cutting.  Therefore, denudation process are processes that contribute to lowering or reshaping the earth.   Types of Denudational Processes Denudation involves four

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Geograpphy Sec Sch

LIMESTONE

LIMESTONE (KARST) REGION Meaning: Limestone or Karst region (Fig. 38.10) refers to a large stretch of land occupied by limestone which possesses a unique type of topography. Limestone is a sedimentary rock of organic materials made up of calcium carbonate.                                   Characteristics of limestone region Solubility: Limestone is insoluble but is made soluble by

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Geograpphy Sec Sch

VOLCANICITY

Volcanicity is the ejection of solid, liquid or gaseous materials from some deep-seated reservoir of molten magma beneath the earth crust to the earth surface. Volcanicity is defined as the rising of molten magma or other gaseous materials beneath to the surface of the earth or within the earth crust. Volcalnicity can be referred to

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Geograpphy Sec Sch

Regions of Earthquake Occurrence

POPULAR EXAMPLES OF DISASTROUS EARTHQUAKES Africa is generally free from earthquake except along the edge (Morocco, Algeria and Egypt) where some earthquake have been recorded. In East Africa, some major earthquakes have occurred in the rift valley zone e.g. Tanzania, near the shore of Tanganyika in the December 1910 and in Kenya in January 1928.

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Geograpphy Sec Sch

EARTHQUAKES

An earthquake is a violent tremor in the earth crust which send out a series of vibrating waves in all directions. These are sudden movement or vibrations of in the earth crust. They occur as a result of disturbances within and below the earth crust   CAUSES OF EARTHQUAKES Most earthquakes one caused by sudden

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