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WAEC - Agricultural Science (1997)

1
Which of the following is not correct about the importance of agriculture?
Answer
(D)
serving as main source of foriegn exchange
2
Most of the land used for agriculture in Nigeria are acquired through
Answer
(E)
inheritance
3
The roles of government in the development of agriculture include the following except
Answer
(E)
training of farmers children
4
Which of the following in not an effect of the North-East trade winds on agriculture?
Answer
(D)
causing heavy rainfall
5
Ice causes rock weathering
Answer
(D)
by exerting an abrasive action on rock fragments
6
The following are characteristics of quartz except
Answer
(D)
having cleavage
7
The factors which affect the number and the activities of soil micro-organisms include the following except
Answer
(A)
topography
8
Which of the following does not influence rock weathering?
Answer
(D)
ammonification
9
The amount of air and water in the soil is mostly affected by the
Answer
(E)
structure of the soil
10
Which of the following is a soil micro-nutrient?
Answer
(D)
iron
11
Crops grown in nitrogen deficient soil show the following characteristics except
Answer
(E)
timely ripening of fruits
12
Which of the following is not a function of organic matter in the soil?
Answer
(D)
inhibiting seed germination
13
The following crops can be grown as cover crops except
Answer
(D)
nicotiana tabacum
14
Effects of overgrazing on soil include the following except
Answer
(D)
improvement of soil structure
15
A farm practice which assists in maintaining the structure and fertility of soil and reduction in risk of the sun infestation is
Answer
(C)
crop rotation
16
Drainage types include the following except
Answer
(A)
shadoof
17
Energy for photosynthesis in crops is provided by
Answer
(D)
sun
18
Cassava is normally planted at a spacing of about
Answer
(B)
0.75 m x 1.0 m
19
Cassava is cultivated in many ecological zones because of its
Answer
(B)
tolerance to low rainfall and soil fertility
20
The agent of controlled pollination in crops is
Answer
(E)
man
21
Milling of rice is usually done
Answer
(E)
after winnowing and parboiling
22
Common pasture grasses include the following except
Answer
(D)
gamba grass
23
Which of the following is not a characteristic of a good pasture?
Answer
(E)
slow growth
24
Which of the following is a pasture grass?
Answer
(D)
cynodon dactylon
25
Reforestation is the
Answer
(A)
organised planting of trees in areas from which forest trees have been removed
26
The tree species widely used in afforestation programme is
Answer
(A)
neem
27
Which of the following is not a reason for converting a piece of land into a forest reserve?
Answer
(C)
disputed ownership of land
28
The forest trees growing in the Sudan savanna zone of Nigeria include the following except
Answer
(D)
neem
29
The most important pests of vegetable crops are
Answer
(D)
insects
30
Which of the following group of crops can be attacked by smut diseases?
Answer
(B)
rice, maize and guinea corn
31
Cultural methods of controlling pests include the following except
Answer
(E)
mulching
32
The aims of crop improvement include the following except
Answer
(E)
improving the infracstructural facilities in a farm
33
The branch of crop production which is normally concerned with crop improvement is
Answer
(A)
plant breeding
34
Which of the following is the primary function of the gizzard?
Answer
(C)
grinding of ingested food into smaller particles
35
The act of mating in cattle is known as
Answer
(E)
service
36
Gestation period is defined as the time
Answer
(B)
between conception and prturition
37
The hormone generally called pregnancy hormone in farm animals is
Answer
(C)
progesterone
38
New-born animals should be fed with colostrum because it
Answer
(B)
contains antiboies protecting them against diseases
39
Which of the following statement is not true about rearing livestock under the free range system?
Answer
(C)
adequate veterinary care
40
Which of the following breeds of cattle is an imported breed?
Answer
(B)
N'dama
41
Pigs are normally classified into the following group except
Answer
(D)
boars
42
High fibre and low energy feeds are classified as
Answer
(B)
roughages
43
The proportion of the different types of feed given to an animal daily is known as
Answer
(D)
ration
44
Which of the following feed stuffs will not supply carbohydrate?
Answer
(E)
bone meal
45
The main component of egg shell is
Answer
(B)
calcium
46
The effects of practicing rotational grazing in a livestock farm include the following except
Answer
(E)
maintaining steady increase in growth rate of animals
47
The causal organism of mastitis in cattle is
Answer
(B)
bacterium
48
In cattle, high fever and sudden death are symptoms of
Answer
(A)
anthrax
49
Night blindness in an animal is caused by a deficiency of
Answer
(A)
vitamin A
50
An aquarium contains all the following except
Answer
(B)
pieces of broken wood
51
Progeny selection involves selection of breeding stock on the basis of
Answer
(E)
performance of offspring
52
The following are functions of farm manager except
Answer
(E)
planting crops and vegetables
53
When granting loans to farmers, the credit officer should consider mostly the
Answer
(D)
production and essential need of the farmers
54
Farm financing may be obtained from the following except
Answer
(C)
mortgage banks
55
The difference between the total assets and total liabilities of a farm enterprise within a specified period before taxation is known as
Answer
(E)
networth