The main advantage of the chain survey over the prismatic compass survey is that the former
答え
(D)
closes its boundaries with no correction
2
The main use of the Abney Level in surveying is to determine the
答え
(A)
angle of inclination
3
A typical example of landforms produced by marine erosion is a
答え
(D)
stack
4
When the gradient of a river channel changes from a steep to a gentle angle, the main activity of the river will be
答え
(A)
depositing
5
The period when the earth is furthest from the sun is
答え
(A)
aphelion
6
A traveller crossing the international Date Line from America to Asia at 12 midnight on Sunday, would have to change his watch to 12 midnight on
答え
(B)
Monday
7
Lakes formed as a result of landslides, screes or avalanches are known as
答え
(B)
barrier lakes
8
In many areas, limestone rocks are resistant to water erosion on their surfaces and form uplands because of their
答え
(D)
joints and pervious nature
9
Fluid, basic lava flow is likely to give rise to a volcanic
答え
(C)
shield
10
Urban floods are mainly caused by
答え
(C)
blockage of drains and waterways
11
The vegetation of the warm Temperate Eastern Margin is characterized by
答え
(B)
mixed deciduous and coniferous forests
12
The heavy dark soil associated with floodable valley-bottoms is a
答え
(D)
hydromorphic soil
13
Which of the following is a major environmental problem in heavily industrialized regions?
答え
(D)
Acid rain
14
A fog is most likely to develop when a
答え
(B)
warm moist wind blows over a cold current
15
One factor which helps to account for the dryness of the Sahara desert is the
答え
(B)
persistence of a high pressure belt over the area
16
The circulation of the oceans and the atmosphere primarily help to redistribute and equalize global
答え
(A)
heat
17
Soils with well developed profiles formed mainly under the influence of the regional climate and vegetation are said to be
答え
(B)
zonal
18
Environmentalists agree that there is a general rise in sea level as a result of
答え
(C)
global warming
19
The set of trees most suitable for pulp and paper making is
答え
(C)
spruce, fir and pine
20
The population of a certain country was observed to be 46 million males and 41 million females within a land area of about 173,000km2. What is the average density of the population?
答え
(A)
503 persons per km2
21
Modern satellite towns are commonly characterized by
答え
(B)
suburban location, planned layout and spacious surroundings
22
An extensive fertile plain with a relatively low population will most likely be characterized by
答え
(D)
scattered rural settlements
23
International agreements in the fishing industry are necessary in order to protect whale and seal from
答え
(B)
stock extinction
24
Many industries in Europe and America have established branches in South East Asia in order to reduce
答え
(A)
production costs
25
Expressways mainly help intracity traffic in that
答え
(A)
the multiple lanes can hold more traffic
26
The best climate for the production of tea is
答え
(B)
maritime
27
The harmattan wind in Nigeria is associated with
答え
(A)
Tropical Continental Airmass
28
Three ethnic groups of the Niger Delta region of Nigeria are
答え
(C)
Ijo, Urhobo and Itshekiri
29
The sequence of savannah vegetation zones in Nigeria towards the northern part is
答え
(B)
Derived, Guinea, Sudan and Sahel
30
Oil refineries are found in which of the following sets of states?
答え
(D)
Rivers, Delta and Kaduna
31
In Nigeria, hydroelectric and thermal energies are generated respectively in
答え
(C)
Kainji and Oji river
32
On the Jos plateau, tin and columbite are obtained mainly from
答え
(D)
alluvial deposits
33
Which of the following groups of people is not found in West Africa?
答え
(D)
Shona
34
The most important gold mining town in Africa is
答え
(C)
Johannesburg
35
An African port that handles more of other countries products than its own is
答え
(B)
Cape Town
36
Power for aluminium smelting is one of the principal objectives of the hydro-electric project in
答え
(A)
Kariba
37
An example of a horst in Africa is
答え
(B)
Ruwenzori
38
The group of countries that produce most of the cocoa in West Africa is
答え
(C)
Ghana, Nigeria and Cote d'Ivoire
39
The two dams found in the Upper and Lower Nile respectively are
答え
(C)
Aswan and Jebel Aulia
40
Which of these statements is true concerning the three rates illustrated above?
答え
(B)
The world rate is closer to that of the more developed region than that of the less developed
41
The range of population growth in the less developed regions during the period illustrated is approximately
答え
(B)
1.6 to 2.7%
42
the ocean feature at point S is best described as
答え
(C)
an ocean dip
43
The section labelled R represents
答え
(C)
a continental slope
44
A profile drawn along LK, north east of River Aye describes
