NECO Geography Practical And Obj And Essay/Theory Solution Questions and Answer – JUNE/JULY 2018 Expo Runz.

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GEOGRAPHY OBJ:

1-10: BBDEADACAA

11-20: DCDDCEBCAC

21-30: AEECADBBAD

31-40: BADDDCEECE

41-50: DBACACACCB

51-60: EDADACACCC

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Geography pratical

Verified

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

3a)

i)Erosional plains

ii)Structural plains

3b)Structural plains:

They are relatively undisturbed horizontal surfaces of the Earth. They are structurally depressed areas of the world that make up some of the most extensive natural lowlands on the Earth’s surface.

Erosional plains:

They are plains that have been leveled by various agents of denudation such as running water, rivers, wind and glacier which wear out the rugged surface and smoothens them. Plain resulting from the action of these agents of denudation are called peneplains (almost plain) while plains formed from wind action are called pediplains.

3c)

i)for farming

ii)Building industrial Area

iii)Building residential area

iv)Grazing Livestock

v)Settlement

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=====(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.

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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

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(7a) Environmental hazard can be defined as A substance, state or event which has the potential to threaten the surrounding natural environment that adversely affects people's health (Pollution and Natural disasters).

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7b.

Physical hazards 

Chemical hazards 

Biological hazards 

Cultural hazards ,

7ai)

Gully erosion Can be defined as the removal of soil along drainage lines by surface water runoff.

7aii)

Sheet Erosion can be defined as the erosion that removes surface material more or less evenly from an extensive area as contrasted with erosion along well-defined drainage lines that produces or enlarges gullies or ravines.

7bi)

Overgrazing occurs when farmers stock too many animals such as sheep, cattle or goats on their land.

7bii)

Overcropping is when the land is being continuously under cultivation and is not allowed to lie fallow between crops.

7ci)

I)Planting Vegetation

II)Retaining Walls/Edging

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(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.

BIOLOGY ANSWER LOADING.......... 87%

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