• THE ARCTIC OR POLAR CLIMATE
    HUMAN GEOGRAPHY,  PHYSICAL GEOGRAPHY

    THE ARCTIC OR POLAR CLIMATE

    Distribution The polar type of climate and vegetation is found mainly north of the Arctic Circle in the northern hemisphere. The ice caps are confined to Greenland and to the highlands of these high-latitude regions, where the ground is permanently…

  • EVOLUTION
    BIOLOGY

    EVOLUTION

    Organic evolution is defined as the sum total of adaptive changes from pre-existing or old form that have taken place over a long time, resulting in diversity of forms, structures and functions among organisms. The concept behind organic evolution is…

  • CLIMATE OF AFRICA
    REGIONAL GEOGRAPHY

    CLIMATE OF AFRICA

    Factors Affecting the Climate of Africa Latitude: Latitude refers to the location of a place on the earth’s surface in relation to the equator. Tropical latitudes where the sun’s altitude is always high have hotter temperature than lower latitudes where…

  • CLIMATIC CHANGE
    PHYSICAL GEOGRAPHY

    CLIMATIC CHANGE

    Climatic change is defined as a change in the statistical properties of the climatic system when considered over long periods of time. In other words, climatic change is a significant and lasting change in the statistical distribution of weather patterns…

  • CLIMATE OF NIGERIA
    REGIONAL GEOGRAPHY

    CLIMATE OF NIGERIA

    Climate is the average weather condition of the atmosphere over a very long period of time. The elements of climate – rainfall, temperature, wind, relative humidity, pressure, cloud cover and sunshine. Temperature: Temperature is defined as the degree of hotness…

  • WEATHER AND CLIMATE
    PHYSICAL GEOGRAPHY

    WEATHER AND CLIMATE

    Weather is defined as the condition of the atmosphere of a place at a certain time over a short period. The weather of a place is always very brief and changes regularly e.g. the weather of today could be sunny,…

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