2013 - WAEC Agriculture Past Questions and Answers - page 2
11
Soils can become acidic as a result of the continuous application of
A
single superphosphate
B
sulphate of ammonia
C
muriate of potash
D
NPK 15: 15: 15
correct option: a
Users' Answers & Comments12
Which of the following species of bacteria lives symbiotically in root nodules of legumes?
A
Azotobacter
B
Clostridium
C
Nitrobacter
D
Rhizobium
correct option: d
Users' Answers & Comments13
Plant nutrients are restored during the fallow period through
A
reduced soil erosion
B
accumulation of soil organic matter
C
reduced evaporation from the soil
D
accumulation of farmyard manure
correct option: b
Users' Answers & Comments14
The processes by which animals release carbon dioxide into the air are
A
respiration and decay
B
respiration and ammonification
C
nitrification and decay
D
denitriflcatin and ammonification
correct option: a
Users' Answers & Comments15
Which of the following practices leads to land degradation in the savanna zones of West Africa? l. Constant annual bushfire ll. Overgrazing of grassland lll. Application of cattle manure. IV. Cutting of woody species for fuel wood
A
l,ll and lll only
B
l, ll and lV only
C
ll, lll, and IV only
D
l, ll, lll and lV
correct option: b
Users' Answers & Comments16
a 100kg NPK 15: 15: 15 compound fertilizer has a filler make -up weight of
A
30kg
B
40kg
C
45kg
D
55kg
correct option: d
Users' Answers & Comments17
One of the main disadvantages of mechanical tillage is the
A
low intial cost of equipment
B
need for special training before machines can be used
C
use of heavy equipment leading to soil compaction
D
use of foreign exchange to purchase machine parts
correct option: c
Users' Answers & Comments18
Which of the following factors affect the work rate of draught animals? l. Feed intake ll. Breed of animal III. Harness for hitching. IV. Height of animal
A
l, ll and lll only
B
l, ll and IV only
C
ll, lll and IV only
D
l, ll, lll and IV
correct option: d
Users' Answers & Comments19
Which of the following features could lead to wrong reading on a prismatic compass?
A
A BIG TREE
B
WIND DIRECTION
C
A POND
D
MAGNETIC ATTRACTION
correct option: d
Users' Answers & Comments20
WHICH OF THE FOLLOWING STEPS GIVES A CORRECT SEQUENCE FOR SURVEYING A FARMSTEAD?
A
Reconnaissance → preliminary survey → mapping
B
mapping → reconnaissance → preliminary survey
C
preliminary survey → reconnaissance → mapping
D
preliminary survey → mapping → reconnaissance
correct option: c
Users' Answers & Comments