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 Questions & Answers

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Friday 18th July, 2025
Agricultural Science (Practical) 10:00 am -11:30 am

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NECO 2025 AGRICULTURAL SCIENCE PRACTICAL ANSWERS

QUESTION 1

(1a)
A (Burdizzo): Has strong, metallic jaws with blunt edges.
B (File): Has a flat or round surface with rough, ridged or serrated teeth.
C (Manure Drag): Has a broad metal blade or pronged frame with a long handle.

(1b)
(i) Restrain the animal properly to prevent movement.
(ii) Locate the spermatic cords by palpation within the scrotum.
(iii) Position the Burdizzo over the cord and clamp it for a few seconds to crush the cord without cutting the skin.

(1c)
Scalpel

(1d)
(i) Cutlass
(ii) Hoe
(iii) Axe

(1e)
Disc blades

(1f)
(i) Rake
(ii) Harrow
(iii) Garden fork

(1g)
The metal blade or joint

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QUESTION 2

(2a)
(i) Hard and coarse-textured surface.
(ii) Usually grey, pink, or light-colored with visible mineral grains.
(iii) Heavy and compact in structure.

(2b)
(i) Used in constructing farm structures (e.g., buildings, bridges).
(ii) Used for making gravel for road construction.
(iii) Used as a foundation material for agricultural equipment installations.

(2c)
Calcium

(2d)
(i) Dolomite
(ii) Gypsum
(iii) Limestone

(2e)
(i) Sand
(ii) Gravel

(2f)
(i) Dry the soil sample completely before analysis.
(ii) Pass the soil sample through a series of sieves with different mesh sizes to separate particles.
(iii) Weigh and record the amount of soil retained on each sieve for particle size distribution determination.

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QUESTION 3

(3a)
G (Kolanut): Cola nitida or Cola acuminata
H (Sweet Potato): Ipomoea batatas

(3b)
G (Kolanut): Beverage/Cash crop.
H (Sweet Potato): Food crop/Root tuber crop.

(3c)
(i) Used in the production of beverages and soft drinks (contains caffeine)
(ii) Used in traditional ceremonies and as a stimulant or chewing nut

(3d)
G (Kolanut): Seed
H (Sweet Potato): Vine cuttings or stem cuttings

(3e)
Sweet potato weevil

(3f)
=G – Beverage/Cash crop=
(i) Cocoa
(ii) Coffee
(iii) Tea

=H – Food crop/Root tuber crop=
(i) Cassava
(ii) Yam
(iii) Cocoyam

 

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QUESTION 4

(4a)
(i) Larva
(ii) Nymph

(4b)
(i) Regular cleaning and disinfection of animal pens.
(ii) Application of recommended insecticides or louse powders on animals.

(4c)
[TABULATE]

=UNDER I (Tick)=
(i) Has eight legs.
(ii) Has hard, oval body with a small head.

=UNDER J (Louse)=
(i) Has six legs.
(ii) Has flat, elongated body with large head relative to body.

(4d)
(i) Both are ectoparasites (live on the body surface of host animals).
(ii) Both feed on the blood of their hosts.

(4e)
(i) Beef tapeworm
(ii) Trichina worm

(4f)
(i) Ensure meat is properly cooked before consumption.
(ii) Meat should be inspected and certified healthy by veterinary/public health officers.
(iii) Practice good hygiene such as washing hands and utensils after handling raw meat.

COMPLETED

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