JAMB Geography Past Questions & Answers - Page 87

431.

Deforestation occurs when one of the following happens except

A.

trees are cut down for agricultural purpose

B.

trees are cut down for limber

C.

bush is subjected to excessive burning and grazing

D.

shifting cultivation is practised

Correct answer is D

Shifting cultivation occurs when a piece of land is left fallow for a while, mostly within a farming season for cultivation to be done on another piece of land. That has no damaging effect on the forest.
When trees are cut down for agricultural purposes, timber production and during excessive bush burning and grazing, the forest is often lost or reduced as there will be reduction in the numbers of trees available.
This often lead to erosion and desert enroachment

432.

The chronological order of these mining activities is

A.

exploitation, exploration, refining, transportation

B.

transportation, refining, exploitation, exploration

C.

exploration, exploiration, refining, transportation

D.

refining, exploitation, transportation, exploration

Correct answer is C

The answer is c exploration,exploitation, refining and transportation chronological order deals with arrangement in order of time from the earliest to the latest in mining exploration which is about inquiring and studying the mineral to be mined comes first, followed by exploitation which deals with working/getting the mineral. refining comes after which is just about separating the minerals and removing unwanted material from it. transporting of the ruined minerals to another site then comes afterwards Option A is wrong because you don't work on minerals if you don't discover and study it first that explain exploitation coming before exploration Option B is wrong because transportation cannot come first in mining process due to the fact that mining hasn't been done so there is nothing mined to transport Option D is wrong because one needs to exploit the minerals to be mined before separating the minerals which refining stand for

433.

Use the map below to answer the question that follows:
The area marked D is

A.

Guinea savanna

B.

high forest

C.

sahel savanna

D.

sudan savanna

Correct answer is D

Answer is D, The Nigeria savanna vegetation include Sudan,Sahel and guinea.

Sudan savanna comes immediately after the north of the guinea savanna as the cardinal point on the diagram describes the direction to the north, the Sudan comes after the guinea the chief product are cattle, groundnut, guinea corn and millet The Sahel savanna is made up of grasses and water shortage is experienced there and this does not encourage plant to grow luxuriantly.

The guinea savanna is suitable between Sudan savanna and rain forest

434.

The greatest advantage of road transport over other types of transportation is that it

A.

can convey bulky goods

B.

can link up two or more countries easily

C.

is more economical

D.

is flexible

Correct answer is D

Road transport has the greatest advantage due to being flexible because unlike other transportation means road have the advantage of reaching every corner of an area and also movement can be stopped at any particular time and place

435.

At least 70% of Nigerian total rubber production comes from

A.

Delta State

B.

Ogun State

C.

Ondo State

D.

Cross River State

Correct answer is A

Delta state, other options also produce rubber but delta state produce than other state
sapele in delta state is where the first rubber plantation in Nigeria was establish during the era of the colonial masters.