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Agricultural Science
WAEC 1998
Agricultural Science 1998 WAEC Past Questions
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11
The particle size of silt is
A.
above 2 mm
B.
0.2 mm-2 mm
C.
0.02 mm-0.2 mm
D.
0.002 mm-0.02 mm
E.
below 0.002 mm
View Answer & Discuss
WAEC 1998
12
If the percentage of nitrogen in ammonium sulphate fertilizer is 20%, calculate the amount of nitrogen in 500 kg of the fertilizer.
A.
20 kg
B.
40 kg
C.
50 kg
D.
100 kg
E.
250 kg
View Answer & Discuss
WAEC 1998
13
Fruit formation in plants may be delayed by excessive availability of
A.
nitrogen
B.
phosphorus
C.
carbon
D.
sulphur
E.
molybdenum
View Answer & Discuss
WAEC 1998
14
The system of irrigation whereby water is introduced as a sheet over farmland is referred to as
A.
shadoof
B.
channel
C.
flooding
D.
underground
E.
drip
View Answer & Discuss
WAEC 1998
15
The major advantage of drainage in agriculture is
A.
promoting growth of micro-organisms
B.
supplying adequate nutrients to the soil
C.
removing excess water from the soil
D.
aiding decomposition of materials in the soil
E.
making aeration of the soil very difficult
View Answer & Discuss
WAEC 1998
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