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Nabteb 2017 Geography Answers – May/June Expo

Nabteb 2017 Geography Answers – May/June Expo



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ANSWER 4 QUESTIONS IN ALL
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SECTION A ANSWER 2QUESTIONS ONLY
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1a)
Population census may be defined as a
regular counting of the number of women, men, children, able and disabled people in a country by the government for the purpose of economic planning and development.
1b)
i)Population Density: The density of the
population of the different areas of a country can easily be known.
ii)Population size: Population census
helps the government to know the
total number of people in the country.
iii)Labor: The number of labor available
at a particular time in an area
can be determined through population census.
1c)
i)Irrelevant or duplicate data collected
ii)Pertinent data omitted
iii)Erroneous or misinterpreted data
collected
iv)Too little data acquired from client
v)Data base format causes disorganized health status profile
1d)
i)Increase in the dependency ratio
ii)Increased government spending on
health care and pensions
iii)Those in work may have to pay higher taxes
iv)Shortage of workers
v)Higher savings for pensions may
reduce capital investment.
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3a)
CHARACTERISTIC
i)Farming is done on subsistence level
ii)It is common in rural areas with
abundant farmlands
iii)It involves small holding of farmlands
iv)Food crops like yam, maize, cassava etc are grown
v)Farmlands are left to fallow after one
or two years of cultivation
3b)
land preparation is The process of
preparing the soil for planting, to
provide a soil environment favorable for
plant germination and/or growth.
3c)
-Advantages-
i)It aids the natural restoration of soil
nutrients during the fallow period
ii)It helps to control plant and diseases
and pests
iii)It uses cheap family labour
iv)It requires low farm input like cutlass
and hoe
v)It ensure continuous sustenance during periods of crop failure
3d)
-Disadvantages-
i)It leads to wastage of land which
could have been used by allowing
ii)it to lie fallowIt leads to soil erosion
when soil is exhausted
iii)It destroys valuable forest resources
like timber
iv)It leas to land fragmentation due to
increase in population
v)It does not leads to mechanization of
farms
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SECTION B ANSWER 2QUESTIONS ONLY
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7b)
i)availability of grasses for cattle feeding
ii)the vegetational zone is guinea savanna with rainfall span 6-8months to about 100-150cm/
iii)land is fertile for quick growth of grass and land not water logged hence rearing is convinent
iv)land ability vast land for rearing and reduced carnivores which could serve as predator
7c)
CATTLE
i)serve as source of food
ii)reduce disease out break or speard as a resevoir of some pathogenic parasites
iii)source of income as foregn exchange
iv)source of raw material for some industries(eg beef)
COCOA
i)source for food
ii)source for income
iii)source of raw material to industries
iv)research material or specimen
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6b)
i)serves as a tourist centre
ii)source of income for industrial production such as wood,ply,paper,pulp
iii)serves as home of some animals which in turn serves as a game reserve
iv)serves as home for reserve and safe keeping of some plants and animal species
v)forest serves as a wind breaker which in turn facilitate increase rainfall which aid better agricultural purpose in such area which helps in reduction of food shortage. Plant species also can be medicinal to cure many infections
6c)
i)soil erosion
ii)deforestation which exposes the soil(loss soil fertility)
iii)destruction of some animals habitat
iv)reduce rainfall in exploited area and interruption of water cycle
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5b)
i)they are dynamic and flow downhills
ii)presence of debris
iii)presence of cataracts

5c)
i)reduction in rainfall which enhance reduce the water volume and shortness of river
ii)silting of river which reduces water volume
iii)deposition of bio-degradable and non-degradable material which hinder movement and aquatic life
iv)Eutrophication which lead to over development of other plant growth of plantin abundant

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