WAEC - Agricultural Science (2002)
1
Subsistence agriculture mainly involves
Cevap(C)
food production using family labour
2
The major export crops produced in the West African sub-region include
Cevap(C)
cocoa,rubber,groundnut and cotton
3
A major problem of grains storage in the rain forest zone of West Africa is high
4
When the government provides subsidies in agriculture,
Cevap(A)
farm inputs are made available to farmers at reduced prices
5
Most agricultural policies do not benefit rural communities because
Cevap(D)
they are formulated by non-practising farmers
6
Plant quarantine regulations are enforced to
Cevap(A)
prevent the intoduction of foreign pests and diseases
7
The primary purpose of establishing wildlife reserve is to
Cevap(B)
prevent extinction of wild animals
8
The most important factor that limits agricultural production in West Africa is
9
An acidic soil can be neutralized by the addition of
10
Capillarity is highest in
11
Which of the following describes the effects of excessive nitrogen application on the growth of maize plants?
Cevap(A)
high vegetative growth with low yield
12
Nitrogen is taken up by plant roots in the form of
13
In the process of recycling carbon in nature, carbondioxide is used by crops during
14
Which of the following is not an effect of water-logging on crop production? it
Cevap(D)
causes plant roots to wilt
15
When soils are poorly drained,
Cevap(C)
the air content of the soil is reduced
16
Which of the following sources of water is least useful for irrigation purposes?
17
Which of the following sources of farm power is most flexible and adaptable to farm operations?
18
Which of the following sources of power supply to the farm is most unreliable?
19
Animal power is usually used on the farm for
20
The most appropriate farm implement for breaking up soil clod is the
21
The daily maintenance practice carried out on a disc harrow is
Cevap(B)
cleaning the soil off the disc
22
Which of the following is an advantage of mechanization?
Cevap(A)
carrying out many farm operations with ease
23
Sexual propagation involves the use of
24
The process of inducing root development on portions of stems still attached to the parent plant is known as
25
Which of the following crops requires shade in the early stages of its growth in the field?
26
Which of the following groups of crops is widely frown in areas with high rainfall?
Cevap(A)
cocoa,oilpalm,rubber and kola
27
An important forage crop in West Africa is
28
The most important reason for encouraging afforestation in the arid regions of West Africa is to
29
The growing of both forest trees and arable crops simultaneously on the same piece of land is termed
30
Which of the following plant diseases is not caused by fungi?
32
The following are biting and chewing insects except
33
Mealy bug is a major pest of
34
Weeds which produce light and numerous seeds are normally dispersed by
35
Which of the following effects is not a consequence of 'introduction' in crop improvement? Introduced crops
Cevap(D)
hamper the growth of local varieties
36
In which part of the alimentary canal of poultry is grit mostly found?
37
Parturition in farm animals marks the end of
38
A sow is normally expected to farrow
39
High temperatures on livestock induces the following effects except
40
Rabbits are kept in cages called
41
Farm animals are identified by the following methods except
42
Which of the following is not a characteristic of pigs?
Cevap(D)
unlimited ability to digest fibre
43
Dried cassava should not exceed 50% of the total ration of pigs because
Cevap(A)
too much cassava in diets will lead to excessive fat deposit
44
The sugar is most commonly found in the blood of animals is
45
Foot and mouth disease is caused by a
46
Which of the following symptoms indicate anthrax disease?
Cevap(B)
sudden death without any visible sign of sickness
47
Which of the following practices may cause fish diseases in a pond?
48
Selection and hybridization are all methods of animal
49
The system of breeding that is practiced when N'dama cows are mated by muturu bulls is
50
In a crop production enterprise, a fixed factor of production could be the
51
On a curve for the law of diminishing returns, maximum output is obtained at the
52
Farmers often find it difficult to obtain loans from banks for agricultural projects because they
Cevap(C)
have no collateral security
53
Farm accounts help the farmer to
Cevap(A)
manage the farm as a business
54
A maize farmer obtains a loan of N120,000.00 at an interest rate of 9% to be repaid in one year.Calculate the interest to be paid on the loan.
55
Agricultural extension programme
Cevap(A)
promotes practical application of useful agricultural information
