Neco 2018 Geography (Objective And Practical/Physical) Answers – June/July Expo

Free Neco 2018 Geography (Objective And Practical/Physical) Answers – June/July Expo
Free Neco 2018 Geography (Objective And Practical/Physical) Answers – June/July Expo

Free Neco 2018 Geography (Objective And Practical/Physical) Answers – June/July Expo

Neco 2018 Geography answers Objective  And Practical/Physical

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GEOGRAPHY ANSWER


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


1a)
DIAGRAM

(1b)
Length of the main road
=22/1*50,000/100,000
=22/1 * 5/10 =2
=22*1/2
=11km

(1b)
The drainage pattern of the mapped area is the south east direction of the rivers

(1c)
(i) Lumbering- because of high trees
(ii) Fishing- because of rivers


2a)
An equinox is a day when the sun is in its zenith over the Equator, and the Earth experiences days and nights of generally equal length. 


3a)
1)The Intermontane plateau: is when a plateau is surrounded by mountains on all sides, it is refers to an Intermontane plateau. Some examples of the Intermontane plateau include the Tibetan plateau and the Bolivian plateaus.
2)The Piedmont plateau: a Piedmont plateau is located close to a mountain on one side. Some good examples of
Piedmont plateaus are the Malwa plateau in India, the Patagonian plateau in Argentina and the Piedmont plateau in America.
3)The Continental plateaus- when a plateau is surrounded by oceans or plains, it is refers to as continental plateau. Examples of continental plateaus include the plateaus of Western Australia and Africa. 
4)Dissected plateaus : These plateau are highly eroded plateaus cut by rivers and broken by deep narrow valleys.

3b)
1Plateaus are very important to man because they are rich in mineral deposits as a result of these mineral deposits, many of the mining areas in the world are located where there are plateaus.

2Plateaus are very good sources of minerals such as Iron, copper, gold, diamonds, Manganese, coal, etc.

3Areas that have plateau also have waterfalls as river falls from a great height of the plateau

4Although plateaus are not very good for agricultural activities due to hard rock formation, hence, agricultural activities can be carried out at the base of the plateau where lava soils have deposited.


(4ai)
i)caves
ii)sinkholes
iii)skyline landscapes
(4aii)
Drawing
(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
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)
i)Cuspate – the land around the mouth of the river juts out arrow-like into the sea.
Example:
The Ebro Delta

ii)Bird’s foot – the river splits on the way to the sea, each part of the river juts out into the sea, rather like a bird’s foot.
Example:
The Mississippi Delta

(6b)
i)The river must have large load. This will be possible if there is active erosion in the upper and middle stages.

ii)There should not be extensive deposition in the middle stage eg presence of lake in between or high evaporation rate

iii)The river’s load must be deposited faster than it can be removed by the action of currents and tides.


7a)
Environmental problems or hazards are disasters which affects lives and properties as a result of the action of man and other natural phenomenon.

7b)
i)Flooding
ii)Desert Encroachment
iii)Drought
iv)Soil Erosion
v)Deforestation


(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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