Agriculture contributes to the economy of West African Countries through the following means except
คำตอบ
(B)
supply of armaments for territorial defence
2
Which of the following statements about agricultural development is true? It leads to I. increased processing of produce II. increased food production III. high productivity IV. increased agricultural labour force
คำตอบ
(A)
I, II and III only
3
Under the commercial land tenure system, farmers find it difficult to secure loans because
คำตอบ
(C)
land holdings cannot be used as security
4
Government plays important role in the development of agriculture through the following means except
คำตอบ
(A)
provision of subsidies
5
Which of the following factors does not influence the distribution of cattle in West Africa?
คำตอบ
(B)
light
6
Poaching is prohibited in game reserves to
คำตอบ
(B)
conserve wildlife
7
Soil water that is available for root absorption at field capacity is
คำตอบ
(A)
capillary water
8
Which of the following factors are causes of deforestation in West Africa? I. expansion of cultivated land II. high population growth rate III. conservation of wildlife in game reserves IV. urban growth
คำตอบ
(C)
I,II and IV only
9
In which layer of the soil profile do most biological activities occur?
คำตอบ
(D)
A-horizone
10
Which of the following statements is correct about micro-nutrients? They
คำตอบ
(B)
are required by plants in very small quantities
11
Which of the following properties of soil determines its water-holding capacity? I. Texture II. pH III. Colour IV. Structure
คำตอบ
(B)
I and IV only
12
Which of the following statements about soil organisms is false?
คำตอบ
(C)
soil with good texture and structure cannot harbour soil microbes
13
A detrimental effect of bush burning is that it
คำตอบ
(A)
destroys soil organic matter
14
The following crops will enrich the soil with nitrates except
คำตอบ
(D)
exoriepus
15
Which of the following groups of rocks is formed as a result of volcanic eruption?
คำตอบ
(B)
basalt,granite and pumice
16
The following fertilizers can be used to neutralize soil acidity except
คำตอบ
(B)
ammonium nitrate
17
The following are advantages of sub-surface irrigation except that
คำตอบ
(B)
it can be used only for specific types of crops
18
Which of the following statement is a disadvantage of human power? it
คำตอบ
(D)
has low output
19
The instrument which enables a surveyor to find the direction of a base line is
คำตอบ
(D)
magnetic compass
20
Limitations of farm mechanization in West Africa do not include
คำตอบ
(A)
land fragmentation
21
The use of animal traction is limited in the forest zones of West Africa because of the
คำตอบ
(B)
presence of tsetseflies
22
The correct sequence for the use of coupled implements for land preparation is
คำตอบ
(A)
plough,horrow and ridger
23
Corms,rhizomes and tubers are examples of
คำตอบ
(A)
underground stems
24
Tomatoes are staked in order to
คำตอบ
(D)
prevent rotting of fruits
25
In crop production, ginger is propagated by
คำตอบ
(C)
rhizome
26
A regulatory control of diseases in crop production is
คำตอบ
(B)
quarantine
27
Yellow colouration of the lower leave of a growing maize plant may be due to deficiency in
คำตอบ
(D)
nitrogen
28
Which of the following insects transmits swollen shoot disease of cocoa?
คำตอบ
(B)
mealybug
29
The main objectives of establishing forest in the arid regions is to
คำตอบ
(A)
check desert enroachment
30
The forest management system which involves the planting of both food crops and forest trees on the same piece of land at the same time is known as
คำตอบ
(B)
taungya
31
Pineapple is widely propagated using
คำตอบ
(B)
suckers
32
Which of the following crops has a fibrous root system?
คำตอบ
(D)
sugarcane
33
The process of grafting in crop production involves
คำตอบ
(D)
the joining of two parts from related crops
34
Crop rotation decreases the incidence of pests by
คำตอบ
(A)
breaking life cycles of pests
35
If the recommended spacing for a tree crop is 2.5cm by 4.0m.determine the number of seedlings required to plant a 2 hectare farmland.
คำตอบ
(B)
2,000
36
Close to the time of harvesting of cotton, sunshine is needed to ensure the production of boils that are
คำตอบ
(C)
not mouldy
37
If T represents the gene for tallness while t represents dwarfness. When a tall (TT) crop is crossed with a dwarf (tt) crop, the resultant crop will be
คำตอบ
(B)
100% tall
38
If T represents the gene for tallness while t represents dwarfness. The genotypic ratio of the second filial generation will be
คำตอบ
(B)
1:2:1
39
The correct sequence of feed utilization in farm animals is
คำตอบ
(C)
ingestion-digestion-assimilation
40
Sexual maturity in farm animal is not influenced by their
คำตอบ
(B)
sex
41
A sow that is not producing milk after farrowing should be given
คำตอบ
(A)
oxytocin
42
In preparing for parturition of a sow,warmth should be provided to
คำตอบ
(D)
prevent chilling of the young
43
The device which would help to stabilize heat in an incubator is the
คำตอบ
(D)
thermostat
44
In animal production, newly-born rabbits are called
คำตอบ
(A)
bunnies
45
The weight of a sheep increased from 25kg to 45kg in two months. If the total consumption during the period was 60kg,determine the feed conversion ratio.
คำตอบ
(C)
3:1
46
Which of the following diseases commonly occur during brooding? I. yolk sac infection II. coccidiosis III. fowlpox IV. pullorum
คำตอบ
(B)
I,II and IV only
47
Piglet anaemia can be controlled by using
คำตอบ
(B)
iron drugs
48
Which of the following parasites lives inside the body of its host?
คำตอบ
(C)
ascaris
49
Tsetse flies are of economic importance in livestock production because they transmit
คำตอบ
(B)
trypanosome
50
A young female cattle which has never calved is known as
