2017 JAMB Geography Past Questions & Answers - page 4

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31
Balance of payment in international trade does not favour developing countries because

A
of their low bargaining power
B
most of their exports are raw materials
C
their currencies are very weak
D
of the low demand of their exports

Correct Option: B

Solution
The answer is B Most of their export are raw materials, Developing countries often depend on the developed countries to produce their raw material into finished product hence they tend to pay more when raw materials are processed and imported back. Bargaining power has little or no effect on international trade as most international deals with exchange of product. African countries most cases request for manufactured goods they needed rather than been paid

32
One of the following is the most correct in regards to desert erosional landforms

A
Yardang
B
Barchan
C
Loess
D
Self dunes

Correct Option: A

Solution
Yardang is a sharp irregular ridge of compact sand lying in the direction of the prevailing wind in exposed desert regions, formed by the wind erosion of adjacent material that is less resistant.
Barchan is a crescent - shaped shafting sand dunes, loess is an unstratified brown barry deposited by wind while self dunes are sand dunes in the form of a long narrow ridge
Yardang as to do with erosional land forms.

33
The flow of a river at the lower course is slow because

A
thick vegetation cover affects free flow of water
B
of the increase in human activities
C
the gradient is greatly reduced
D
of the increase in the volume of water

Correct Option: C

Solution
Answer C is the gradient greatly reduced when water flow down from the upper course it flows with a high velocity downwards. An example is a waterfall.as the water enter the lower course the gradient( the rate of regular ascent or descent) is reduced because the slope of the bed is gentle and also, materials washed down from the upper course are deposited there. the vegetation cover does not determine water movement as rivers are not vegetative. tress can only cover the surrounding areas and not the river itself Human activities and water volume also does not determine the flow of river at the lower course. water either small or mass will always find its way

34
An intrusion of molten magma formed horizontally along the bedding planes of sedimentary rocks is

A
sill
B
laccolith
C
dykes
D
batholith

Correct Option: C

No further explanations yet...

35
Which of the following is a warm current?

A
Labrador current
B
California current
C
Benguela current
D
Florida current

Correct Option: D

Solution
Florida current originates from tropical area which is warm.
Labractor current is a cold current in the north Atlantic ocean
California current is a cold pacific current which mere southwards along the western coast of North America
The Benguela current is also a cold current which flows northward in the south Atlantic ocean

36
A line on a map or chat connecting areas of equal rainfall is called

A
isotherm
B
isobar
C
isohyet
D
isopach

Correct Option: D

Solution
Isohyet is a line on a map that connects areas of equal rainfall

Isotherm is a line on a map of the earth surface that connect points having the same temperature at a given time or for a given period

Isobar is an imagining line or a line on a map that connects areas of equal atmosphere pressure.

Isopach is a line that connects points of equal thickness of a geographical stratum (many layers of a substance) formation

37
Large scale urban migration began as a result of

A
industrial development
B
improved medical services
C
high demand for manufactured goods
D
efficient transportation system

Correct Option: D

Solution
Answer is A people in the rural area migrate to the urban area mainly to improve their living standard by working in industries rather than farming and petty trading which is the main income source in rural area. improved medical source brings about urban migration but not or larges scale transportation system is just a means of connecting the urban rural areas and it just brings about quick delivery of goods

38
The local craft industry of Wood carving is associated with one of these states

A
kano
B
Ananmbra
C
Osun
D
Edo

Correct Option: D

Solution
Benin City in Edo State is the most important wood raining area in Nigeria. That is because Benin falls in the rain-forest zones where essentials raw materials of hard wood is basically available in large quantities

39
The circulatory movement of water in the ocean which is continuous is

A
riples
B
currents
C
waves
D
Tsunamis

Correct Option: C

Solution
A wave is a continuous movement on water surface, usually in the ocean. Its is also said to be a moving ridge on the surface of the water.

Option A, ripples often occur on the surface of small liquids or a small body of water

Option B, currents is a continuous movements of water in one direction. When there is water erosion, the eroded water tends to move in a particular direction, that is an example of a current.

Tsunamis is a large oceanic wave caused by an earthquake under the sea. The question says circulatory movement of surface water which is continuous in the ocean, current, ripples and tsunamis are wrong as they do not fit as the right answer.

40
The introduction of materials that have negative impacts on t he ecosystem is known as

A
combustion
B
transpiration
C
evaporation
D
pollution

Correct Option: D

Solution
pollution is the process of making land,water,air, etc dirty and not safe or suitable to use. that makes it the right option

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