1990 - WAEC Agriculture Past Questions and Answers - page 3
21
The most common weed of pastures in Nigeria is
A
spear grass
B
goat weed
C
water leaf
D
tridax
correct option: a
Users' Answers & Comments22
The following are forestry crops except
A
tectona grandis
B
gmelina arborea
C
anarcadium
D
pinus eliotis
correct option: c
Users' Answers & Comments23
The pest designated as a national pest by the Nigeria Agricultural Advisory Council is
A
variegated grasshopper
B
thrips
C
capsid
D
cricket
correct option: a
Users' Answers & Comments24
Which of the following groups comprises only oil crops?
A
groundnut, jute and cotton
B
melon, coconut and sisal hemp
C
coconut, cotton and sunflower
D
sunflower, rubber and jute
correct option: c
Users' Answers & Comments25
The mosaic symptom commonly associated with viral diseases of crops can be best observed on
A
roots
B
stem
C
leaves
D
fruits
correct option: c
Users' Answers & Comments26
Pests of crops that feed by piercing and sucking plants include the following except
A
stem borers
B
aphids
C
cocoa mirids
D
cotton stainers
correct option: a
Users' Answers & Comments27
Maize grows best on
A
sandy soil
B
sandy-clay soil
C
clayey-loam soil
D
loamy soil
correct option: d
Users' Answers & Comments28
Soil may be exposed to erosion when a pasture is
A
undergrazed
B
overgrazed
C
paddocked
D
weeded
correct option: b
Users' Answers & Comments29
Taungya farm involves the combination of
A
crop and animal husbandary
B
crop husbandary and forestry
C
forestry and animal husbandary
D
crop husbandary and fish farming
correct option: b
Users' Answers & Comments30
The destructive effects of variegated grasshoppers are conspicuously observed on
A
cassava and yam crops
B
cocoa and citrus crops
C
cowpea and maize crops
D
maize and cassava crops
correct option: d
Users' Answers & Comments