JAMB - Agricultural Science (2013)
1
The major reason which necessitates the
expansion of agriculture is the increase in
2
Which of the following groups of crops are
mostly cultivated in the rainforest zone of
Nigeria?
Answer(B)
Maize, cocoyam and cassava
3
In farm animals, gonads are organs associated
with
4
Which of the following combinations of farm
inputs enhances the healthy growth of crop?
Answer(B)
Irrigation and fertilizer
5
When farmers engages in both plant and animal
husbandry, he is practising
6
The classification of soils into sand, loam and
clay is largely determine by the percentage of
7
An example of igneous rock is
8
The most devastating agent of erosion is
9
A farming practice that encourages the depletion of soil fertility is
10
The kind of tillage method most suitable for
maize is
11
Use the diagram below to this answer
The structure labeled I represents a
12
Use the diagram below to this answer
This type of root is associated with
13
Self-pollination takes place when grains are
transferred from the
Answer(C)
anther to the stigma of same plant
14
Which of the following parts of plants are
normally used for vegetative propagation?
15
The most suitable planting pattern for a
mechanized farm which is mono cropped is
16
Jute and kenaf thrive well in a soil that is
17
Forages that are chopped green and fed directly
to livestock are referred to as
18
Floriculture deals with the study of
19
An advantage of weeds is that they are used to
20
Cassava mosaic disease is transmitted by
21
A serious pest of sweet potato whose larvae
destroy the foliage is
22
The fertility of soils under forest is sustained
mainly by
23
The Mendelian law of segregation states that
the characteristics which is hidden in an F1,
reappears in F2 generation in a ratio
24
The breed of sheep that can be found
throughout Nigeria is
25
A female cattle which has not had a calf or
developed into the mature form of a cow is
referred to as
26
Which of the following farm animals is
considered as monogastric?
27
The process of mating in poultry is referred to as
28
In farm animals, a sign of heat includes
Answer(B)
secretions from the vulva
29
The anti-sterility vitamin in livestocks nutrition is
30
The relative humidity in an incubator is usually
set at
31
The causative organism of Avian influenza is a
32
The introduction of proper planktons species
into the pond is referred to as
33
Selection based on the performance of ancestors
is referred to as
34
The most important of all the factors of
production in crop farming is
35
From the curve above, at what point is it
advisable for the farmer to stop further addition
of input?
36
Elastic demand is the type in which a change in
price
Answer(A)
brings about greater change in quantity of goods demanded
37
Farm labour is usually measured in terms of
Answer(B)
hours or days of work by labour
38
A piece of information contained in payroll
record of farms is
39
Retailers may create artificial scarcity of goods
by
40
The most effective method of disseminating
information among farmers is through
41
In surveying, the instrument used to measure
horizontal, vertical angles and planes is the
42
Use the following diagram below to answer this question
During which of the following plant propagation
methods is the tool represented used?
43
The part labeled I is made of
44
Which of the following routine maintenance in a
tractor is necessary on daily basis?
Answer(D)
Checking of the oil level in the engine.
45
The type of energy obtain from the sun is
