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Neco 2023 Agric Science Practical Answers

(1a) Specimen A – Watering can
Specimen B – plier
Specimen C – Knapsack sprayer

(1b) (PICK ANY ONE)
(i) A watering can is typically a small handheld container with a spout for pouring water while a knapsack sprayer is a backpack-like device with a larger capacity for holding liquid and a spraying mechanism.
(ii) A watering can relies on gravity to pour water while a knapsack sprayer uses either manual pumping or a motorized mechanism to create pressure for spraying the liquid.
(iii) A watering can is used for precisely pouring water onto specific plants or areas while a knapsack sprayer is used to spray liquid over a larger area ensuring even coverage.
(iv) A watering can is mainly used for watering plants while a knapsack sprayer can be used for multiple purposes such as applying pesticides fertilizers or herbicides.

(1c) -SPECIMEN A-
(PICK ANY TWO)
(i) Watering plants in gardens or pots.
(ii) Providing a controlled and targeted water supply to seedlings and delicate plants.
(iii) Transporting water for indoor or outdoor plants.
(iv) Can be used for decorative purposes like pouring water into a fountain.

-SPECIMEN B-
(PICK ANY TWO)
(i) Gripping and holding objects firmly.
(ii) Bending or twisting wires and other materials.
(iii) Cutting through wires or thin metal.
(iv) Can be used as a multifunctional tool in various industries including electrical work plumbing and mechanical repairs.

(1d) (i) Read and understand the instructions and safety guidelines provided by the manufacturer.
(ii) Wear appropriate personal protective equipment (PPE) such as gloves goggles and a mask.
(iii) Calibrate the sprayer to ensure the correct dilution ratio and application rate of the liquid being sprayed.
(iv) Inspect the sprayer for any leaks damaged parts or clogs before use. Clean and maintain the sprayer regularly to ensure its proper functioning.

(1e) (PICK ANY TWO)
(i) Regular maintenance and cleaning can prevent rust corrosion or damage increasing the lifespan of the tools.
(ii) Well-maintained tools function optimally increasing productivity and reducing effort or time required to complete tasks.
(iii) Regular maintenance ensures that the tools are safe to use reducing the risk of accidents or injuries.
(iv) Proper maintenance can reduce the need for repairs or replacements saving money in the long run.
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(2a) D: Litmus paper
E: Cow dung
F: Limestone
G: Clayey soil (powdery form)

(2b) -PICK TWO-
(i) Moisten the litmus paper with distilled water.
(ii) Place a small amount of the powdery clayey soil (G) on the litmus paper.
(iii) Observe the color change of the litmus paper and compare it to the pH scale to determine the pH of the soil.

(2c) -PICK THREE-
(i) Specimen E(cow dung) provides organic matter, improving soil structure and fertility.
(ii) It enhances nutrient availability in the soil.
(iii) specimen E(cow dung) increases water-holding capacity of the soil.
(iv) It contributes to the development of beneficial microbial activity in the soil.

(2d) {PICK THREE}
(i) Powdery texture
(ii) High water-holding capacity
(iii) Poor drainage
(iv) Smooth and fine particles

(2e) -PICK THREE-
(i) Specimen F is used as a soil amendment to increase soil pH and reduce acidity.
(ii) It is added to acidic soils to provide calcium and magnesium, essential nutrients for plant growth.
(iii) Specimen F is used in animal feed to supply calcium for strong bones and improved eggshell quality.
(iv) It is used in the production of fertilizers to supply essential nutrients to plants and improve soil fertility.
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(3a) H – Yam Tuber.
I – Cassava Tuber.
J – Orange Fruit.

(3b) {CHOOSE ANY BEST 1}
(i) Yam Setts.
(ii) Yam Seeds.
(iii) Yam minisetts.

(3c) (i) Yam Tubers are stored in barns.

(3d) (i) Cassava Mosaic Disease.
(ii) Bacteria Blight.

(3e) {CHOOSE ANY BEST 2}
(i) Garri.
(ii) Cassava Flour.
(iii) Fu-Fu/foofoo.

(3f) (i) Cocoyam.
(ii) Sweet Potatoes.

(3g) {CHOOSE ANY BEST 2}
(i) Mulching.
(ii) Regular Weeding.
(iii) Application of fertilizer.
(iv) Staking.
(v) Training of Vine.

(3h) {CHOOSE ANY BEST 2}
(i) Thrips.
(ii) Red Mites.
(iii) Fruit Bores.
(iv) Caterpillars.
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(4a) Identify specimens K, L and M.
K: Groundnut Cake
L: Hides and Skin
M: Digestive Tract of a Bird

(4b) (i) Tanning
(ii) Dyeing

(4c) (i) Hides and skins are used in the production of leather goods such as shoes, bags, belts, and other accessories, which have a high demand in the market.
(ii) Farmers can sell hides and skins to tanneries or leather processing industries, generating income for themselves and contributing to the overall economic growth of the country.
(iii) The leather industry provides employment opportunities for people involved in the tanning, dyeing, manufacturing, and marketing of leather products, thus promoting job creation and economic development.

(4d) Name four parts of M.
(i) Crop
(ii) Gizzard
(iii) Intestine
(iv) Cloaca

(4e) (i) Avian Influenza (Bird Flu)

(4f) (i) Groundnut cake is rich in protein, which is essential for the growth and development of animals.
(ii) Groundnut cake is also a good source of energy due to its high fat content. Animals require energy for various metabolic processes and physical activities.

=GOODLUCK!!=

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