2001 - WAEC Agriculture Past Questions and Answers - page 2
11
The most active agent of physical weathering of rocks in arid regions is
A
ice
B
water
C
wind
D
animals
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12
The chemical weathering that is responsible for changing haematite to limestone is
A
hydration
B
solution
C
oxidation
D
hydrolysis
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13
Liming is used to correct soil's
A
neutrality
B
acidity
C
cation exchange capacity
D
porosity
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14
A vertical section through the soil is referred to as soil
A
profile
B
horizon
C
structure
D
texture
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15
In the determination of soil texture, a soil sample was found to be smooth and powdery when dry and formed a cast when wet. That soil is
A
clay
B
silt
C
loam
D
sand
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16
Which of the following mineral elements is essential for chlorophyll formation?
A
sodium
B
molybdenum
C
boron
D
magnesium
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17
Replenishing soil nutrients involves the following except
A
leaching
B
fallowing
C
cover cropping
D
liming
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18
Which of the following is not a source of farm power?
A
wind
B
bull
C
tractor
D
plough
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19
Which of the following sources of farm power will assist in the tillage of more land per unit time?
A
man
B
animal
C
wind
D
machine
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20
A farm tool used for harvesting heads of rice is the
A
shear
B
secateur
C
sickle
D
rake
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