WAEC - Agricultural Science (1998)

1
Customary land tenure system in Nigeria encourages
Answer
(B)
fragmentation of lands
2
Wastage of agricultural products during harvesting period is due mainly to inadequate
Answer
(B)
storage and processing facilities
3
The provision of farm inputs to farmers by government can best be described as
Answer
(D)
subsidy
4
Which of the following uses of land should be given more attention in Nigeria for self sufficiency in food production?
Answer
(D)
establishment of agriculture and forestry
5
The effects of high environmental temperature on dairy cows include the following except
Answer
(B)
high feed intake
6
Which of the following does not fit into the agricultural use of land?
Answer
(A)
mining
7
Gneiss id a metamorphic rock formed from
Answer
(E)
granite
8
The components of soil include the following except
Answer
(E)
light
9
Which of the following is an organic manure?
Answer
(E)
compost
10
Which of the following is not a property of clay soil? it
Answer
(B)
has low capillarity
11
The particle size of silt is
Answer
(D)
0.002 mm-0.02 mm
12
If the percentage of nitrogen in ammonium sulphate fertilizer is 20%, calculate the amount of nitrogen in 500 kg of the fertilizer.
Answer
(D)
100 kg
13
Fruit formation in plants may be delayed by excessive availability of
Answer
(B)
phosphorus
14
The system of irrigation whereby water is introduced as a sheet over farmland is referred to as
Answer
(E)
drip
15
The major advantage of drainage in agriculture is
Answer
(C)
removing excess water from the soil
16
Which of the following groups of farm equipment use electricity as their source of power?
Answer
(A)
milking machine, incubator and refrigerator
17
Combine harvester is usually used for harvesting
Answer
(B)
rice
18
One hectare of a school farm equals
Answer
(D)
10,000m2
19
In a farm lay-out, the best site for a fish pond is
Answer
(B)
an undulating land
20
Which of these groups of crops require nursery for their successful cultivation?
Answer
(D)
cocoa, orange, tomato and oil palm
21
Which of the following crops is propagated by suckers?
Answer
(A)
pineapple
22
Which of the following is obtained from rubber tree?
Answer
(B)
latex
23
If cassava is planted at a spacing of 1m x 1m, what will be the plant population on 1 hectare of land?
Answer
(A)
10,000
24
What is the main difference between forage and fodder crops? Forage crops are
Answer
(E)
grazed while the fodder crops are fed
25
Which of the following pasture grasses can be propagated mainly by roots and seeds?
Answer
(E)
guinea grass
26
A stoloniferous grass which spreads rapidly and forms a good ground cover is
Answer
(C)
cynodon plectostachyus
27
The act of clearing forests is termed
Answer
(C)
deforestation
28
A major raw material of the paper industry is
Answer
(A)
pulp
29
The system of growing arable crops at the early stage of forest establishment is referred to as
Answer
(D)
taungya system
30
The physiological changes that show up during disease attack on crop plants are referred to as
Answer
(B)
symptoms
31
The major pest of maize in Southern Nigeria is called
Answer
(B)
stem borer
32
Which of the following insect pests of crops is usually controlled by fumigation?
Answer
(A)
bean weevil
33
A major symptom f onion/twister is
Answer
(B)
motting of leaves
34
Gummosis is caused by a
Answer
(A)
fungus
35
Which of the following is not true about the aims of crop improvement? Production of
Answer
(D)
tall frowing leafty varieties of maize
36
Which of the following is the correct function of the gizzard?
Answer
(C)
grinding of food
37
The correct sequence of the components of a goat's stomach is
Answer
(C)
rumen-reticuleum-omasum-abomasum
38
Rabbits are kept in
Answer
(A)
hutches
39
A castrated male pig is called
Answer
(B)
barrow
40
Layers mash should contain a high percentage of
Answer
(B)
calcium
41
Which of the following symptoms occurs when there is deficiency of iron and copper in livestock rations?
Answer
(D)
anaemia
42
The methods of rangeland management include the following except
Answer
(A)
overgrazing
43
A miracidium is a larval stage of a
Answer
(B)
liver fluke
44
The foot and mouth disease of cattle is caused by a
Answer
(A)
virus
45
Which of the following is most ideal when cow dies due to anthrax disease?
Answer
(A)
bury or burn the carcass of the dead animal immediately
46
The depth of a fish pond depends on the
Answer
(C)
type of fish to be reared
47
Cow dung is usually added to a fish pond in order to encourage the growth of
Answer
(B)
phytoplankton and zooplankton
48
The mating of different breeds of animals is known as
Answer
(B)
cross-breeding
49
Which of the following types of labour is commonly used in peasant agriculture?
Answer
(D)
family
50
The quantity of food crop available for sale at the current market price over a period of time is known as
Answer
(C)
supply