JAMB Geography Past Questions & Answers - Page 72

356.

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 answer is D

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

357.

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

A.

isotherm

B.

isobar

C.

isohyet

D.

isopach

Correct answer is D

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

358.

Which of the following is a warm current?

A.

Labrador current

B.

California current

C.

Benguela current

D.

Florida current

Correct answer is D

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

359.

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

A.

sill

B.

laccolith

C.

dykes

D.

batholith

Correct answer is C

No explanation has been provided for this answer.

360.

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 answer is C

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