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    [NECO] GEOGRAPHY ANSWERS 2020

     NECO-GEOGRAPHY-ANSWERS

    Geo-Obj!

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    Your next Subject.

    ====================================

    You Are To Answer Question One(1) And Any

    Other Three (3) Questions.

    THEORY-ANSWERS

    (1ai)

    Relief; the relief of the mapped area

    (kashimbila N.W) can be described as follows

    (i)A dissected plateaus is found of the north

    central area of the map which extended to the

    Central area.

    (ii)The eastern , western and southern areas of

    the mapped area are mainly lowlands with the

    lowest height of 500m above see level

    (1aii)

    Drainage pattern; this can be described in the

    the following ways

    (i)the main river is the katsina ala given and

    other minor ones that empty their water into it

    e;g mku,agbadi,apipo,abagu,kangi, etc . The

    direction of flow of river katsina - Ala is from

    north-west to south - east on the map .

    (ii)the drainage pattern of the mapped area is

    dendritic.

    (1aiii)

    Settlement; the settlement pattern of the

    mapped area is displeased on scalloped

    settlement. That is the building are far from

    each other with few social amenities.

    (1b)

    The development of given katsina - ala in these

    stages there are the youthful and matured and

    old age stages.

    The youthful stage mark the source of river

    katsina - ala at bamenda highlands with a V-

    shape valley. The matured stage of the rivers is

    characterized by meanders and U-shape valley.

    The old stage leads to the mouth of given

    katsina - ala (I;e when it empties its water to

    river benue)

    The reasons for the above cycles of

    development of given katsina - ala are;

    (i)Vertical erosion at the youthful stage

    (ii)Lateral erosion and transportation at the

    matured stage

    (iii)Deposition of materials at the old age stage.

    =====================================

    (2a)

    (i)changing of the seasons not same

    temperature in different parts of the Earth

    (ii)change of the length of the Day and Night

    during the year

    (iii)change of the position of the midday sun

    and night during the year and in the different

    parts of the Earth

    (iv)Change of the lunar eclipse and marking of

    the year.

    (2bi)

    (i)Equinox refers to a day with an equal

    duration of day and night. We have two

    equinoxes in a year which are:

    -Spring equinox on March 20

    -Autumnal equinox on September 22

    -Examples-

    (i)It could be spring or autumnal.

    (ii)It is equal lengths of day and night

    (iii)the days and nights are equal

    (2bii)

    Solstice is refers to a day with either the

    longest day or the shortest. The two solstices

    in a year are:

    -Winter solstice on December 22

    -Summer solstice on June 21

    -Examples-

    (i)It could be summer or winter

    (ii)It is unequal length of day and night

    (iii)The days are longer in summer and shorter

    in winter.

    (2c)

    (i)Because the changes in hours of daylight

    and in temperature caused by

    revolution and tilt lead to the yearly change of

    seasons at middle latitudes. If Earth’s axis were

    perpendicular to its plane of orbit, seasons

    would not

    occur. In addition, every place on Earth’s

    surface would experience 12 hours

    of daylight and 12 hours of darkness every

    day. On the other hand, if Earth’s

    axis were tilted more than 23.5°, each

    hemisphere would experience hotter

    summers and colder winters.

    (ii)Because On the first day of summer, every

    point on Earth within 23.5° of the

    North Pole experiences 24 hours of daylight.

    The boundary of this region,

    at latitude 66.5° N, is the Arctic Circle. On June

    21 in the Southern

    Hemisphere, every point south of the Antarctic

    Circle (latitude 66.5° S )

    experiences 24 hours of darkness.

    (iii)Because The hemisphere tilted toward the

    sun receives more direct sunlight and

    thus has warmer temperatures and longer days.

    The hemisphere tilted

    away from the sun receives indirect sunlight.

    That hemisphere has cooler

    temperatures and shorter days. In other words

    it changes the summer to be warm and bright

    and also changes it to be Winter.

    =====================================

    (7a)

    Environmental conservation is the practice of

    us humans saving the environment from the

    loss of species, and the destruction of the

    ecosystem, primarily due to pollution and

    human activities.

    (7b)

    (i)Water

    (ii)oil

    (iii)coal

    (iv)iron

    (7c)

    (i)Recycling; This is a process by which the life

    of resource is extended by means of recycling

    it or reusing it as an input or output. This is

    applicable only to on-energy resources, since

    the use of a material as an energy resource

    results in its useless dissipation into the

    atmosphere. In other words Reprocessing of

    unwanted products (e.g. newspapers, scrap

    metals, glass and sewage etc.).

    (ii)Waste Reduction; waste reduction, it will

    automatically ensure lesser exploitation of

    resources. Waste reduction can be achieved by

    appropriately redesigning industrial processes,

    so that there will be technological efficiency in

    utilizing the resource and avoidance of waste to

    the minimum. In other words Further, the waste

    of one industry can be used as the raw material

    of another industry.

    (iii)Material Substitution: the use of a material

    resource can be restricted by finding an

    alternative resource. The problem in this is that

    many materials have extensive uses and also

    joint uses. In other words the copper sheet can

    be substituted by aluminium, which at the same

    time would reduce demand for soldering agents

    made from and lead. Aluminium is being

    extensively substituted for tin, particularly, in

    the production of metal cans and containers.

    (iv)Rewilding; Allowing areas to restore

    themselves naturally without interference by

    humans (except possible species

    reintroduction)

    =====================================

    (8a)

    (i)Location; The spatial location of features are

    defined by coordinates in a specific reference

    system. In other words they are represented by

    points, lines or polygons and geometry of the

    three dimensional representation in space.

    (ii)Data Quality; it refers to the credibility and

    accuracy of the data or more generally how

    good the data is. In other words quantitative

    quality relates to measurable components such

    as spatial accuracy. And the qualitative quality

    consists of those non-measured components,

    which usually relates to the entire data set and

    not to specific objects.

    (iii)Generalization; relates to the level of scale

    and details associated with the object. Objects

    may be aggregated from larger to lower scale,

    while the opposite process is very limited. For

    example, if the countries layer can be

    aggregated into a states layer but opposite

    cannot be accomplished without external data.

    (iv)Entity versus field based data; The world

    can be represented as a set of discrete entities

    such as forests, rivers, roads and

    buildings.This is refereed to as the Entity based

    approach. In other words the field-based

    approach represents the world as a continuous

    function with attributes that vary in space.

    Natural phenomena such as air pollution

    distribution and terrain may be the best

    represented using this approach.

    (8b)

    Tabulate.

    -Advantage-

    (i)It has the ability of improving the

    organizational integration. GIS would then

    integrate software, hardware and also data in

    order to capture, analyse, manage and so

    display all forms of information being

    geographically referenced.

    (ii)GIS would also allow viewing, questioning,

    understanding, visualizing and interpreting the

    data into numbers of ways which will reveal

    relationships, trends and patterns in the form of

    globes, maps, charts and reports.

    -Disadvantage-

    (i)GIS technology might be considered as

    expensive software.

    (ii)It as well requires enormous data inputs

    amount that are needed to be practical for

    some other tasks and so the more data that is

    to put in.

    =====================================


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