The most important contribution of agriculture to mankind is the provision of
คำตอบ
(D)
food
2
An advantage of commercial agriculture is that it
คำตอบ
(C)
produces high returns
3
Which of the following statements about communal land tenure system is true?
คำตอบ
(A)
it gives the owner complete freedom on the land
4
Agricultural land use is negatively affected by
คำตอบ
(A)
type of soil
5
The practice of growth both food and forage crops simultaneously on the same piece of land is called
คำตอบ
(B)
ley farming
6
The use of land for agricultural purpose involves the following except
คำตอบ
(C)
road construction
7
The natural grasslands of West Africa are generally located in the
คำตอบ
(B)
guinea savanna
8
The following processes in soil formation are caused by biotic factors except
คำตอบ
(D)
soil disintegration by dehydration
9
Which of the following rocks is not formed from pre-existing rocks?
คำตอบ
(B)
granite
10
Chemical weathering is fastest in
คำตอบ
(A)
cool weather
11
It is not advisable to apply fresh farmyard manure because
คำตอบ
(A)
its heat of decomposition may cause scorching of plants
12
Magnesium deficiency in crops can be corrected by the application of
คำตอบ
(A)
dolomite
13
The atmosphere gains carbon dioxide through the following ways except
คำตอบ
(C)
photosynthesis in plants
14
Controlled burning has the advantage of
คำตอบ
(B)
inducing re-growth of pasture grasses
15
Which of the following fertilizers should be applied for good plant growth after prolonged use of sulphate of ammonia on a neutral soil?
คำตอบ
(B)
lime
16
Which of the following statements indicate advantages of sub-surface irrigation? I. Low operation cost once established II. Does not disturb the movement of implements III. Permits efficient use of water IV. easily floods the field
คำตอบ
(B)
II,III and IV only
17
The removal of excess water from the sub-soil is known as
คำตอบ
(B)
drainage
18
The best source of farm power for agricultural production is
คำตอบ
(A)
human power
19
The greatest disadvantage of using a bulldozer in land clearing is that it
คำตอบ
(A)
removes the fertile top soil along with the vegetation
20
Mechanization is difficult to practice where the
คำตอบ
(A)
land is fragmented
21
Which of the following equipment is not used in farm surveying?
คำตอบ
(D)
pick axe
22
Farm surveying is important because it determines
คำตอบ
(B)
size of farmland
23
Bush fallowing is necessitated by
คำตอบ
(B)
reduction in soil fertility
24
A well fermented and dried coffee seed is said to be
คำตอบ
(B)
graded
25
A bag of fertilizer had a ratio of 0:10:0 written on it. This means that the fertilizer contains
คำตอบ
(C)
0 kg of nitrogen, 10 kg of phosphate and 0 kg of potash
26
In crop rotation, deep-rooted crops should follow shallow-rooted crops because deep-rooted crops
คำตอบ
(C)
feed from different soil layers
27
If a crop is planted at a spacing of 100cm x 50cm. Calculate the plant population required for an hectare of farm land.
คำตอบ
(D)
20,000
28
The term hermetic storage of grains means keeping grains in
คำตอบ
(A)
air-tight containers
29
A disadvantage of vegetatively propagated crops is that they
คำตอบ
(C)
do not withstand harsh conditions
30
Which of the following statements about mulches is true? They
คำตอบ
(A)
include paper and plolythene sheets
31
Which of the following crops is bet harvested using a combine harvester?
คำตอบ
(A)
maize
32
Which of the following crops produces latex?
คำตอบ
(C)
rubber
33
What will be the following effect of establishing a grass with centrosema spp. in a pasture? The
คำตอบ
(D)
forage yield will be high
34
Which of the following is not an economic importance of forests? They serve as source of
คำตอบ
(D)
domestic animals
35
The twisting, wrinkling and mottling of leaves are symptoms of
คำตอบ
(B)
viral diseases
36
An example of biological control of pests is
คำตอบ
(A)
using lady bird beetles to feed on cytoplasm
37
Edible seeds with sticky covering and hooks are most likely to be dispersed by
คำตอบ
(C)
animal
38
Hereditary characteristics are passed from parents to offspring through the
คำตอบ
(C)
gene
39
Embryonic membranes do not include
คำตอบ
(A)
uterus
40
The digestion of plant fibre is non-ruminant herbivores takes place in the
คำตอบ
(B)
caecum and colon
41
Which of the following hormones is responsible for the relaxation of the pelvic ligaments and cervix during parturition?
คำตอบ
(C)
oxytocin
42
The signs of heat in animals include the following except
คำตอบ
(D)
increased appetite
43
Which of the following is not an abiotic condition that affects livestock production?
คำตอบ
(D)
predators
44
Cows should not be allowed to eat plenty of young fresh pastures because they will
คำตอบ
(B)
develop bloat
45
In commercial egg production, the most effective management system is
คำตอบ
(C)
battery
46
Which of the following statements is true of a pig which has only one testis?
คำตอบ
(B)
it can still produce viable sperm
47
The ingredient which is not a major source of minerals in animal feeds is
คำตอบ
(D)
palm kernal meal
48
If a soyabean meal contains 45% crude protein, what quantity of it should be provided to laying flock to supply 5.00 kg of protein?
คำตอบ
(D)
2.25 kg
49
The following are common grasses in the rangeland except
คำตอบ
(B)
calopogonium mucunoides
50
Disease of animals that can also be transferred to humans are
คำตอบ
(C)
zoonotic
51
Poultry showing difficulty in breathing and loss of appetite are under the attack of
คำตอบ
(B)
aspergillosis
52
The major cause of spoilage in fresh fish is
คำตอบ
(D)
bacterial attack
53
Which of the following statement about a good fish pond is true?
คำตอบ
(C)
it must have low concentration of dissolved salts
54
The mechanical introduction of semen into the vagina of a female animal is termed
คำตอบ
(C)
artificial insemination
55
The most important input contributed by farm family is
