WAEC - Agricultural Science (1992)

1
Which of the following is not a characteristic feature of peasant farming?
Answer
(B)
long-term loan facility
2
The principal involved in crop production include the following, I. controlling of diseases, weed and pests, II. maintaining the quality of agricultural produce, III. conserving and preserving of natural resources, IV. controlling soil erosion. Which of the following combination does the government aim at when making agricultural policies?
Answer
(D)
I, II,III and IV
3
Which of the following is not a problem of agricultural development in Nigeria?
Answer
(A)
provision of food and employment opportunity
4
What is the purpose of wildlife conservation?
Answer
(C)
preventing the extinction of some wild animals
5
Adequate knowledge of climate is useful in determining the following except
Answer
(E)
marketing practices and stategies
6
The most important soil microorganism which are effective decomposers of wood in forest areas are
Answer
(C)
termites
7
Which of the following is not a biotic factor affecting agricultural production?
Answer
(B)
soil
8
The effect of clearing agricultural lands clean of all vegetation and or trees include the following except
Answer
(D)
complete removal of soil nutrients
9
Which of the following is not an advantage of drip-irrigation?
Answer
(D)
its efficiency on water distribution in steep slopes is poor
10
Chlorosis observed along the veins of leaves is a characteristic symptom for the deficiency of
Answer
(B)
magnesium
11
The removal of excess water from the soil surface and the upper subsoil is known as
Answer
(B)
drainage
12
Which of the following is not an effect of manuring on the soil?
Answer
(B)
releasing adequate plant nutrients of the appropriate time
13
A soil with low PH value can be improved by the addition of
Answer
(B)
calcium carbonate
14
Which of the following factors will cause etiolation in crops?
Answer
(E)
absence of light
15
Which of the following tools is the best for making seed beds?
Answer
(C)
shovel
16
The windmill is normally used as a source of power in
Answer
(A)
pumping well water
17
The most appropriate farm machinery for breaking soil is the
Answer
(B)
plough
18
An area of land where fruit trees are cultivated is commonly called
Answer
(A)
an orchard
19
The natural grasslands of West Africa are generally located in the
Answer
(B)
guinea savanna
20
Which of the following forest trees is a soft wood?
Answer
(E)
Gmelina
21
Soil-borne diseases of crops can be effectively reduced by
Answer
(B)
crops rotation
22
Gametes are produced through the process of
Answer
(B)
meiosis
23
Which of the following is the most suitable raw material used in the production of pulp in paper industry?
Answer
(B)
Softwood
24
Which of the following explains the term pruning?
Answer
(A)
removal of unnecessary branches of trees crops
25
28. The freshly cut forage crops fed to livestock in their housing units are referred to as
Answer
(E)
soilage
26
Which of the following plant diseases is not caused by fungus
Answer
(D)
cassava leaf-spot
27
Trees for lumbering will be regularly available in Nigerian forests if
Answer
(D)
a tree is planted for everyone felled
28
The side effects of the various preventive and control measures of pests and diseases of crops include the following except
Answer
(D)
improvement in the quality of farm produce
29
Which of the following parts of plants are normally used for vegetative propagation?
Answer
(E)
stem, root and leaf
30
The correct sequence in preparing new land for cropping is usually
Answer
(A)
stumping, laying out of farm, ridging and tiling
31
Which of the following methods would quickly provide a large harvest of oranges from a tree with desirable qualities?
Answer
(D)
Grafting a branch from the tree with desirable qualities to the stock of other citrus trees
32
Which of the following is not an aim of improving crops?
Answer
(E)
improving mechanical method of harvesting crops.
33
Which of the following is not a characteristic of a good pasture?
Answer
(E)
Ability to provide mainly high quality carbohydrates.
34
Feed carotene is usually converted into
Answer
(E)
vitamin A
35
Which of the following is a disadvantage of battery cage?
Answer
(B)
production of eggs which cannot be hatched
36
Routine operation in cattle farming include the following except
Answer
(E)
shearing
37
The act of mating in chicken is known as
Answer
(A)
treading
38
Stud bull is the term used in describing
Answer
(B)
a bull kept mainly for breeding
39
When an animal is being fed on a ration that does not increase its value but keeps the animal in good health and constant weight, the animal is said to be on a
Answer
(C)
maintenance ration
40
The ways by which a pasture can be improved include the following except
Answer
(A)
over-grazing
41
Which of the following group of diseases mostly affect goats in Nigeria?
Answer
(D)
foot and mouth, mastitis and mange
42
The conditions necessary for establishing a fish pond include the following except
Answer
(A)
sunlight
43
Genetic characteristics are passed from the parents to offspring through the
Answer
(D)
gene
44
A livestock disease caused by a fungus is
Answer
(A)
aspergillosis
45
An unproductive animal completely removed from the rest of the stock is said to be
Answer
(B)
culled
46
For which of the following products do most farmers in West Africa raise pigs?
Answer
(A)
Pork
47
Which of the following will not help milk let-down in a lactating dairy cow?
Answer
(D)
injection of progesterone
48
Oil-meals that may be used in formulating livestock ration include the following except
Answer
(A)
blood meal
49
A disease that causes abortion in cattle in the later stages of pregnancy is
Answer
(C)
brucellosis
50
The type of soil recommended for pond foundation is
Answer
(B)
clay
51
Which of the following animals is not normally bred in West Africa for the product indicated beside it?
Answer
(B)
sheep-wool
52
Which of the following is not a source of agricultural finance in Nigeria?
Answer
(B)
merchant Banks
53
Which of the following statements is not correct about agricultural production?
Answer
(E)
production is restricted to the availability of commodity only
54
To which of the following factors of production does the law of diminishing returns relate?
Answer
(C)
variable factors
55
The expenses of a complete farm enterprise record include the following except
Answer
(D)
list of market centres