1990 - WAEC Agriculture Past Questions and Answers - page 2
11
Which of the following will not contribute to soil formation in Nigeria?
A
carbonation
B
oxidation
C
temperature
D
hydrolysis
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12
The type of soil formed is affected by the following factors except
A
farming systems
B
climate
C
vegetation
D
topography
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13
Which of the following is the function of nitrosomonas in the nitrogen cycle?
A
ammonification
B
volatilization
C
nitrification
D
dentrification
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14
Which of the following farm practices does not have a very harmful effect on the soil?
A
crop rotation
B
land clearing
C
overgrazing
D
flooding
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15
Soil can be drained by the use of the following except
A
sprinklers
B
channels
C
gutters
D
ditches
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16
What are give and take lines often used in farm surveying?
A
leveling measurements of farms
B
chain measurements of farmlands
C
measuring diversion or obstruction in a farmland
D
measuring turning points during surveying
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17
Which of the following is not a limitation of farm mechanization?
A
technical know-how
B
capital
C
small holdings
D
lack of spare parts
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18
Incubators are used to supply heat to
A
day-old chicks
B
sick fowls in cold weather
C
cockerels to increase their libido
D
poultry attendants for protection against cold
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19
Root knot of tomato is caused by a
A
fungus
B
bacterium
C
virus
D
protozoan
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20
If the seed rate for guinea corn is 5.6 kg per hectare, what will be the amount of seeds required for planting 35 acre farm?
A
75.1
B
78.4
C
568.2
D
784.5
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