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GEOGRAPHY (OBJ & PRATICAL) PRACTICAL NECO GCE 2015 FREE EXPO ANSWERS




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Geography obj
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2 ai)
The International Date Line is an imaginary line of navigation on the surface of the Earth that runs from the north pole to the south pole and
demarcates the change of one calendar
day to the next . It passes through the
middle of the Pacific Ocean , roughly
following the 180 ° line of longitude but deviating to pass around some territories and island groups .
2 aii )
great is a relative measurement in physical space , see Size in other words is extent , amount , or intensity
considerably above average.

1b)1. Demographics
Urban settlements
contain a
heterogeneous
population
consisting of
different ages,
cultures and
ethnicities,
whereas rural
areas contain a
more
homogenous
population based
on family, similar
ethnicities and
fewer cultural
influences.

2. Land Area and
Usage
Urban settlements
are more
expansive and
contain a wide
range of land
uses. For instance,
major
metropolitan
areas use density
zoning to indicate
different levels of
development. In
contrast, rural
settlements are
more or less self-
contained and
may not use
zoning controls or
have limited
planning and
development
regulations.

3. Population Density
The U.S. Census
Bureau defines
urban settlements
as areas with
more than 50,000
people and at
least 1,000 people
per square mile;
including
contiguous census
tracts or blocks
with at least 500
people per square
mile. In contrast,
rural settlements
contain less than
2,500 people, at a
density between
one and 999
people per square
mile.

4. Transportation
Network
Rural
transportation
networks consist
of local and
county roads with
limited
interconnectivity
to rail and bus
lines. Urban
settlements
contain highway
infrastructure as
well as airports
and light or heavy
commuter rail.

5. Economy
Urban areas are
dependent on a
global economy
of import and
export, whereas
rural economies
rely on a local and
agricultural-based
economy with
dependencies on
services, such as
hospitals and
educational
establishments in
nearby urban
centers.



1 )diagram
NEw scale 1 :25 , 000

1 ai)the height of vidau hill is 700 m

1 aii)
the distance between lake yimirdiva and
bijibiji is 14 .4 cm
14 .4 * 1 / 50000 =
(14 .4 * 1 )/ 50000 =14 . 4 / 50000
=2 .88 * 10 ^ - 4
=2 .888 * 10 ^ - 1 Km
=28888 km

1 b)
i)farming
ii )trasportation
iii )lumbering
iv )schooling

1 c)
ridge drainage system
1 d )gradient of major road from kwalanda to guyaku
gradient = difference in height / horizontal
distance
Gradient =10 / 1 :50000
=10 * 50000 / 50000
10 km




7 a)
i) Deforestation: This is the situation
whereby there is cutting down of trees
without replacement. thereby leading to
desert encroachment.It causes increased run off flooding . It leads to destruction of natural habitats. It leads to changes in
energy balance

ii ) Overgrazing: This is the excessive
removal of the grasses by animals
thereby leaving the soil bare to desert encroachment, erosion , leaching and other
environmental hazards .




6 a )
i)hydraulic action
ii )abrasion / corrasion
iii )attrition
iv )corrosion.

i)Hydraulic action: The pressure of water breaks away rock
particles from the river bed and banks .
The force of the water hits river banks ,
and then pushes water into cracks. Air
becomes compressed, pressure increases
and the riverbank may, in time collapse .
ii ):
iii ):
iv ):





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