WAEC - Agricultural Science (2018)

1
Which of the following problem does not cause wastage of farm produce?
Answer
(A)
Use of crude farm tools
2
Which of the following statements is not a reason for providing tractor-hiring services to farmers? To
Answer
(C)
increase the cost of production
3
The land tenure system which involves the outright purchase of land is
Answer
(C)
freehold
4

The diagram above illustrates a farm equipment. What is its use on the farm?

Answer
(A)
watering
5

In the diagram above illustrating a farm equipment, the function of the part labelled I is

Answer
(D)
reducing water to droplets
6
Which of the following implements is not a tractor-coupled implement?
Answer
(B)
sheller
7
Which of the following statements is not true about electrical power? It
Answer
(C)
can perform work on its own
8
The survey equipment used for measuring angular distance is
Answer
(C)
ranging pole
9
The practice of growing arable and forage crops alternately on a piece of land is called
Answer
(A)
ley farming
10
Which of the following groups of raw materials are used in textile industries?
Answer
(B)
Cotton, jute and wool
11
Which of the following is an example of igneous rock?
Answer
(A)
Basalt
12
The chemical composition of soil is mostly influenced by
Answer
(D)
Parent material
13
The structure of loam could be described as
Answer
(C)
crumby
14

The aim of the experiment illustrated above is to

Answer
(B)
ascertain water content of the soil
15

The purpose of the part labelled I in the experiment illustrated above is to

Answer
(B)
allow even evaporation of water
16
A beneficial effect of bush burning on the soil is the
Answer
(C)
destruction of weed seeds
17
Which of the following practices does not replenish lost soil nutrients?
Answer
(D)
Bush burning
18
The use of inorganic fertilizer is preferable to organic manure because inorganic fertilizer
Answer
(B)
releases nutrients to the soil faster
19
Which of the following statement describes an advantage of underground drainage? It
Answer
(A)
allows for free movement of farm machinery
20
Which of the following crops is usually classified as a vegetable?
Answer
(A)
Lycopersicon esculentum
21
A groundnut variety produces a steady yield of 350kg per hectare. What will be the yield of the variety on a 10-hectare farm?
Answer
(C)
3,500kg
22
Thinning is a farm operation in which
Answer
(B)
the number of seedlings per stand is reduced to one or two
23
Which of the following plants is not a pasture grass?
Answer
(C)
Stylosanthes gracilis
24
One advantage of cross breeding is that the
Answer
(C)
offspring performs better than the average of the parents
25
Assuming that brown colour is dominant over black colour in cowpea, what percentage of the F1 will have brown colour , if a homozygous brown cowpea is crossed with a homozygous black cowpea?
Answer
(A)
100%
26
Ornamental plants are commonly used for the following purposes except
Answer
(D)
as bedding materials for animals
27
Hibiscus and croton are examples of
Answer
(B)
hedge plants
28
A disadvantage of vegetative propagation is that
Answer
(D)
diseases are easily transferred to offspring
29
An effective method of preventing viral diseases in crops is by
Answer
(D)
planting resistant varieties
30
A groundnut plant showing stunted growth with yellow or mottled leaves is likely to be infected with
Answer
(C)
rosette
31

The diagram above illustrates a crop pest. What kind of pest is this?

Answer
(B)
A chewing insect pest
32

The diagram above is a crop pest. A cultural method used in controlling the pest illustrated is

Answer
(A)
spraying with insecticides
33

In the diagram of the digestive tract of a farm animal illustrated above, deamination is a function of the part labelled

Answer
(D)
IV
34

The diagram above illustrates the digestive tract of a farm animal. Digestion of protein starts in the part labelled

Answer
(A)
I
35

In the diagram illustrated above, fertilization takes place in the part labelled

Answer
(A)
I
36

In the diagram illustrated above, chalaza is formed in the part labeled

Answer
(A)
I
37
A farmer observed that all his day-old chicks clustered around the source of heat in a brooder house. This observation is likely due to
Answer
(D)
low temperature
38
Which of the following practices ensures that a young animal has resistance against diseases?
Answer
(D)
Giving the animal access to colostrums
39

The animal by-product illustrated in the diagram above may be prepared and fed to farm animals as a source of

Answer
(C)
calcium
40

The animal by-product illustrated in the diagram above is not used in making

Answer
(D)
leather
41
Vitamin K deficiency in farm animals causes
Answer
(C)
delayed blood clotting
42
Which of the following methods is not used in collecting semen for artificial insemination?
Answer
(C)
Herd mating of the animals
43
Complete eradication of tsetse flies will be an effective control measure for
Answer
(B)
trypanosomiasis
44
Which of the following diseases is caused by a virus?
Answer
(C)
Rinderpest
45
Bees are regarded as the friends of the farmer because they 
Answer
(C)
help in pollination