NECO GEOGRAPHY THEORY AND OBJECTIVES 2018

NECO GEOGRAPHY THEORY AND OBJECTIVES 2018

GEOGRAPHY OBJ:
1-10: BBDEADACAA
11-20: DCDDCEBCAC
21-30: AEECADBBAD
31-40: BADDDCEECE
41-50: DBACACACCB
51-60: EDADACACCC

GEOGRAPHY
SECTION A
(1)
a
Original length=39cm
Original breadth =39cm
Original scale=1:50,000
converting to a third of the original map we have
New scale=1:50,000×3
=1:150,000
New breadth= 39/3 =13cm
New length= 39/3= 13cm
DRAWING
b)DAYAN-NKANTA settlement
From the left. =15cm/3 =5cm
From the top =19cm/3=6.3cm
ii) River adeukro
From the left =27cm/3 =9cm
iii) class 2 road
TECHIMANTIA
from the right =8/3=2.7cm
From the top =16.3/3 =5.4cm
BECHEM
from the right=7.5cm/3 =2.5cm
1d) The road network on the mapped area consists of class 1road which moves from road camp in the southern part and moves through the Western part and class 2&3 road connected at duayaw-Nkwanta. and nodal town and pass through susanho to North west,. Another interchange to awonmo a nodal town and moves to benchem and TECHIMANTIA which is a commercial area
(2) (YEAR 2003)
COUNTRY|COCOA PRODUCE|DEGREES |
_____________________________
P |200 |42.35°
Q. | 400 |84.71°
R. | 800 |169.4°
S. | 300 |63.53°
——————————————— total=1700.
Total =360°
2b) kindly use compass for accurate drawing of a pie chart use the above degrees
SECTION B COMPLETED
4a)solar system is the collection of eight planets and their moons in orbit round the sun, together with smaller bodies in the form of asteroids, meteoroids, and comets
4bi)
-Mercury is the innermost of the eight planets in our Solar System. It is the second densest major body in the solar system after Planet Earth and its density is slightly less than the density of Earth.
-It orbits the Sun once in about 88 Earth days.
-Its diameter is 4,878km at its equator, which is about two-fifths of Earth’s diameter
4bii)
-Composition
The composition of the Earth consists of the solid and liquid portion and the atmosphere or gaseous portion.
-The earth is spherical in shape
-Size
The diameter of the Earth at the equator is 12,756 km (7,926 miles), and its circumference or distance around the Earth at the equator is 40,075 km (24,901 miles)

(4ai)
i)caves
ii)sinkholes
iii)skyline landscapes
(4aii)
Drawing - UPLOADING
(4b)
i)Limestone are all used to neutralise excess acidity of soil in agriculture practice.
ii)Limestone is used as a building material.
iii)It is used in industries to purify iron in blast furnaces.
iv)It used in Glass making.
5a)
Drawing - UPLOADING
5b)
i)A great circle is the shortest path between two points along the surface of a sphere.
ii)great circle is the intersection of the surface with a plane passing through the center of the planet.
iii)They cross successive meridians at different angles.
5c)
i)Great circle are of importance to navigation and aviation.
ii)The shortest route between any two places is along the arc of the great circle which passes through them.
iii)Ships crossing the vast oceans and aircrafts follow the Great circle route in order to save fuel and time.

6a)
1)accurate delta eg Niger 
2)birds foot delta eg Mississippi delta
6b)
1)deposition of material
2)flow of water into the ocean
3)the river flow through the distribution into the sea
6c)
1)deposits of natural resources
2)tourist centre
3)to generate H.E.P

7a)
environmental hazard is a substance, a state or an event which has the potential to threaten the surrounding natural environment / or adversely affect people's health, including pollution and natural disasters such as storms and earthquakes.
7b)
1)volcanic eruptions
2)earthquake
3)drought
4)desert encroachment
5)pollution
7c)
1)climatic changes: is a change in the statistical distribution
of weather patterns when that change lasts for an extended period of time. 
2)overgrazing occurs when plants are exposed to intensive grazing for extended periods of time, or without sufficient recovery periods. 
3)bush burning: is the act of setting forests, weeds and grasses on fire.
7d)
1)afforestation
2)irrigation
3)rotational/controlled grazing

(8a)
i)Encroachment : More migration lead to
less availability of land which lead to higher economic value of land.
ii)Pollution: Explosive increase in the urban population without
corresponding expansion of civic facilities such as lack of adequate infrastructure for the disposal of waste results in waste clogging the
natural channels and storm water drains.
iii)Illegal mining activities: Illegal mining
for building material such as sand and quartzite both on the catchment and on the bed of the lake have extremely damaging impact on the water body.
iv)Interference in drainage system:
Drainage congestion caused by badly
planned construction of bridges , roads , railway tracts, hampers the
flow of water and the result is flood.
(8b)
i)Flooding leads to loss of human life
ii)Flooding leads to damage to property
iii)It leads to destruction of crops
(8c)
i)Improving Drainage Improving water drainage helps control floods by facilitating easy flow of excess water, especially in urban areas during flash floods.
ii)Building Dikes and Levees Dikes and levees are flood-control structures built to fight river flooding and water surges.
iii)Building Canals; Canals are artificial water channels that can be crucial to flood prevention. Canals facilitate control of water levels passing through, and form linear reservoirs and water locks.
iv)Harvesting Rain Water Harvesting rainwater involves collecting and storing rainwater and can not only prevent floods, it can also curb urban water scarcity.

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