WAEC - Agricultural Science (1988)

1
A piece of land is said to be on lease to a farmer when the land is
Answer
(E)
given for a specified period on rental basis
2
The problems associated with land tenure through inheritance include the following except
Answer
(C)
right of individuals to free use and control of inherited land
3
soil texture is described as the
Answer
(A)
distribution of the different sizes of soil particles
4
The alternate heating and cooling of rocks result in
Answer
(C)
fragmentation
5
Which of the following factors influence agricultural production is biotic factor?
Answer
(A)
parasite
6
Granite is
Answer
(D)
an igneous rock
7
In which layer of the soil profile does most biological activity occur?
Answer
(E)
A-horizon
8
When leaves of crop plants show brownish coloration from the tips of the mid-ribs backward, they are showing deficiency symptom of
Answer
(E)
phosphorus
9
which of the following farm practices can prevent excessive evaporation from soil surfaces?
Answer
(B)
mulching
10
Which of the following is not associated with surface irrigation?
Answer
(D)
mole drains
11
Which of the following types of soil contains particles of diameter between 0.02 mm and 2.o mm?
Answer
(A)
sand
12
A farmer cultivating leafy vegetables will require fertilizers with a relatively high content of
Answer
(D)
nitrogen
13
The earthworm is important to the farmer because it
Answer
(A)
improves soil structure
14
The type of rocks formed from the molten magma is known as
Answer
(B)
igneous
15
The relationship between the microorganisms and plant in the nitrogen cycle is best described as
Answer
(D)
symbiosis
16
The type of energy obtained from the sun for agricultural uses is known as
Answer
(D)
solar energy
17
Which of the following implements will be used for the next farm operation after clearing a new farmland?
Answer
(E)
plough
18
Which of the following cannot be used to rub the metal parts of farm tools before storage?
Answer
(C)
water
19
The common surveying equipment for farmland include the following except
Answer
(E)
spade
20
An example of fungal disease of stored grains is
Answer
(E)
mould
21
A small plot of land where intensive cultivation is practiced to produce vegetables is generally referred to as
Answer
(D)
a garden
22
Which of the following plants is not classified as forage grass?
Answer
(E)
stylo
23
The plant-a-tree-campaign of the Federal Government of Nigeria is a way of encouraging forest
Answer
(E)
regeneration
24
Which of the following is not a method of controlling pests?
Answer
(E)
mulching
25
The most effective method of controlling or preventing viral diseases in plants is by
Answer
(A)
planting resistant varieties
26
Reduction of ten seedlings of pawpaw to two per stand is referred to as
Answer
(B)
thinning
27
Which of the following describes the steps in making hay?
Answer
(A)
cut-sun-bale
28
A situation where only specified trees in a forest reserve are cut down is known as
Answer
(D)
selective exploitation
29
The causative organism of maize rust is
Answer
(A)
a fungus
30
The reproductive cells of crops are called
Answer
(A)
gametes
31
Which of the following fruits is a capsule?
Answer
(A)
okra
32
Birds are important pests of
Answer
(C)
cereal
33
The agent of controlled pollination in plants is
Answer
(C)
man
34
Ginning is the process of
Answer
(D)
separating cotton fibre from its seed
35
The groundnut rosette virus is transmitted by
Answer
(A)
aphid
36
Which of the following farm animals possess a pair of caeca?
Answer
(E)
fowls
37
The head of the tapeworm is known as the
Answer
(C)
scolex
38
Which of the following is not a function of the ruminal microorganism?
Answer
(E)
eructation of the ruminal gas
39
Which of the following factors would you consider the least important for the successful incubation of eggs?
Answer
(A)
light
40
In which area of Nigeria is the kuri breed of cattle commonly found?
Answer
(A)
borno
41
Crops grown primarily for feeding animals are known as
Answer
(C)
forage
42
Which of the following feeding stuff should be increased in the diet of laying birds?
Answer
(B)
bone meal
43
The following livestock diseases are caused by viruses expect
Answer
(A)
anthrax
44
Fingerlings refer to the young of
Answer
(C)
fish
45
The practice of progeny selection involves selecting bread stock on the basis of the
Answer
(A)
performance of offspring
46
The most important symptom of brucellosis in cattle is
Answer
(A)
abortion
47
Which of the following is not a sign of heat in animals?
Answer
(E)
mucous discharge from the rectum
48
Which of the following practices would a farmer not likely adopt in pig management?
Answer
(E)
dehorning
49
Feeds with high amount of fibre are classified as
Answer
(B)
roughages
50
In birds, loss of appetite, respiratory difficulties and nervous paralysis are symptoms of
Answer
(C)
newcastle diseases
51
In which of the following ways can fish be processed and preserved?
Answer
(A)
salting and smoking
52
The incubation period for turkey is
Answer
(C)
27 days
53
Which of the following is commonly used as a source of plant protein in livestock ration?
Answer
(D)
groundnut cake
54
The brownish flattened and leaf-like parasite found in cattle are called
Answer
(B)
liver flukes
55
Which of the following decisions will not benefit a farmer?
Answer
(D)
diversification of production from the beginning