Agriculture (2015) | Study Mode

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Question 21
A
big
B
Bright
C
not mouldy
D
not open
Explanation
Option B is correct because sun lighting helps to brighten cotton bolls that are bright which depicts good quality.

Correct option: B
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Question 22
A
Reduction of poverty through job creation
B
Supply of armament for territorial defence
C
Provision of foreign exchange
D
supply of raw materials to industries
Explanation
Option B is correct because Agriculture is not used in supply of armed weapons (i.e. armament)

Correct option: B
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Question 23
A
Bunnies
B
Kids
C
Pouts
D
Lambs
Explanation
Option A is correct because bunnies are young rabbits.

Correct option: A
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Question 24
A
cotton
B
coffee
C
cowpea
D
sugarcane
Explanation
Option D is correct because monocotyledon plants all have fibrous root and sugar cane is a monocot.

Correct option: D
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Question 25
A
steam borer
B
Mealybug
C
white fly
D
scale insect
Explanation
Option B is correct because mealy bug transmits swollen shoot disease.

Correct option: B
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Question 26
A
Capillary water
B
hygroscopic water
C
Gravitational water
D
superfluous water.
Explanation
Option A is correct because plant roots absorbed water through capillary action.

Correct option: A
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Question 27
A
1:01
B
1:02
C
3:01
D
4:01
Explanation
Feed Conversion Ratio (FCR)
= (Mass gained)/(Mass of feed)
= Mass Gained = 45kg 25kg = 20kg
= Mass of feed = 60kg
= FCR = \(\frac{20}{60}\)
= \(\frac{1}{3}\)
= 1 : 3

Correct option: C
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Question 28
A
Promote formation of only root nodules
B
are required by plants in very small quantities
C
are fixed into the soil through microbial activity
D
increase crop tolerance to pest attack.
Explanation
Option B is correct as micro nutrients are those nutrients required in small qualities by plants (iron, zinc etc)

Correct option: B
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Question 29
A
potassium
B
phosphorus
C
zinc
D
nitrogen
Explanation
Option B is correct because when plant is lacking phosphorus, its leaves become yellow.

Correct option: B
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Question 30
A
Calopogonium
B
pueraria
C
centrosema
D
Axonopus
Explanation
Option D is correct because it doesnt have nitrogen. Option A, B, C are incorrect because they are all legumes and have nitrogen to produce nitrates.

Correct option: D

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