WAEC - Agricultural Science (1995)

1
The most important factor that determines the rate of agriculture development in a country is the
Answer
(A)
readiness of farmers to adopt viable agricultural research results
2
The newly introduced government agricultural programme in Nigeria is
Answer
(C)
agricultural development projects
3
A characteristic feature of subsistence agriculture is
Answer
(A)
supply of labour by farm families
4
Which of the following will retain the greatest amount of water?
Answer
(A)
clay
5
The most common soil mineral found in all crystalline rocks and a main constituent of granite and sandstone is
Answer
(B)
quartz
6
The factors affecting formation of soil include the following except
Answer
(D)
catena
7
Inhibition of root and bark development, fruiting and seed formation in crops is due to the deficiency of
Answer
(A)
phosphorus
8
Which of the following is not an effect of grazing on the soil?
Answer
(D)
increase in soil acidity
9
In underground drainage
Answer
(C)
water seeps into the tiles to reach an outlet where water is disposed
10
Which of the following is not an edaphic factor affecting agricultural production?
Answer
(C)
predators
11
A metamorphic limestone is
Answer
(A)
marble
12
A soil with pH2 can be described as
Answer
(E)
highly acidic
13
Which of the following will be responsible for the poor yield of fertile soil in a high rainfall area?
Answer
(A)
leaching of soil nutrients
14
Crop rotation has the following effects on the soil except
Answer
(E)
predisposing soil to leaching
15
Flood irrigation is mainly used in
Answer
(A)
arid area
16
Which of the following factors has the greatest influence on crop production?
Answer
(A)
light
17
Which of the following is not a reason for preferring rotational grazing to continuous grazing?
Answer
(E)
avoiding excessive amount of organic manuring
18
The study and management of forests and forest resources is known as
Answer
(D)
forestry
19
The most suitable soil for cultivating yam is
Answer
(E)
clay loam
20
Jute, cotton and sisal are
Answer
(C)
fibre crops
21
Which of the following diseases of crops causes stunting in maize?
Answer
(E)
smut
22
When individual crop with desired characteristic mostly favoured by the environment are chosen for breeding this type of breeding is referred to as
Answer
(D)
selection
23
Molasses is a major by-product obtained after the processing of
Answer
(B)
sugarcane
24
Rice bran is usually obtained from the paddy after
Answer
(E)
milling and polishing
25
Yams stored in a barn should be inspected at least once a week to
Answer
(E)
remove sprouts and rotten tubers
26
A major routine operation in cowpea production which normally starts from flowering stage is
Answer
(A)
weekly spraying with insecticides
27
The mesocrap of an oil palm fruit is
Answer
(E)
pulp
28
Blackarm is a bacterial disease of
Answer
(B)
cotton
29
The female sex hormone that is responsible for oestrus in farm animal is called
Answer
(D)
oestrogen
30
The fertility of the soil is an important factor in the selection of site for a fish pond because a fertile soil will
Answer
(B)
stimulate growth of lower plants which are sources of food to fish
31
Air sacs are present in
Answer
(A)
poultry
32
The gestation period in days of a sow is
Answer
(C)
114
33
The castrated male cattle is referred to as
Answer
(E)
steer
34
The amount of livestock feed needed to prevent either an increase or a decrease in live weight of an animal is referred to as
Answer
(A)
maintenance ration
35
The water-snail is important in the life-cycle of
Answer
(C)
liver fluke
36
Control of water level in a fish pond with minimal loss of fish can be achieved with the aid of
Answer
(B)
monk with panel, screens and outlet channel
37
Male spermatozoa is produced in the
Answer
(B)
testicles
38
The main function of ground maize in livestock feed is for
Answer
(A)
providing energy
39
The discontinuation of feeding young animal with milk is known as
Answer
(A)
wearing
40
N'dama cattle are well adapted to West Africa mainly because the breed
Answer
(B)
is resistant to trypanosomiasis
41
The anti-sterility vitamin in livestock nutrition is vitamin
Answer
(B)
E
42
Which of the following is not a characteristic of a good pasture?
Answer
(D)
low leaf to stem ration
43
The mode of infection of rinderpest disease in cattle id through
Answer
(B)
drinking water
44
Which of the following characteristic is not normally considered in the selection of animal for breeding?
Answer
(E)
horn size
45
Land in agricultural business is said to be a durable asset. This means land
Answer
(A)
value is realized over several years