WAEC 2023 - AGRIC PRACTICAL ANSWER



(1a)
(PICK ANY TWO)
(i) Soil moisture
(ii) Temperature
(iii) Organic matter
(iv) Soil pH
(v) Soil Texture
(vii) Oxygen levels

(1b)
(PICK ANY FIVE)
(i) Specimen A creates burrows as it moves through the soil, which enhances soil aeration
(ii) It consumes decaying plant material and aids in the soil decomposition process.
(iii) It burrows through the soil, creating channels that improve soil structure.
(iv) Its burrows act as pathways for water movement through the soil.
(v) It consumes organic matter in the soil, breaking it down into smaller particles.
(vi) It produces a sticky substance called mucilage, which helps bind soil particles together, forming aggregates or clumps.
(vii) Its activity can influence soil pH.
(viii) It promotes the growth and activity of beneficial soil microorganisms.
(ix) The presence of specimen A in the soil, contribute to higher plant productivity.

(1c)
(PICK ANY FOUR)
(i) Its activity resuts to crop damage
(ii) Its extensive tunneling systems underground, which can destabilize the soil structure leads to soil erosion
(iii) It can disrupt nutrient cycling in the soil.
(iv) They can target young seedlings causing damage to the seedling
(iv) The infestation of specimen B can weaken the overall health and vitality of plants.
(v) They increased soil vulnerability to drought.
(vi) Their activity can lead to economic loss.
(vii) It can cause decrease in plant productivity.


(1d)
(PICK ANY FOUR)
(i) Specimen C has good drainage
(ii)) It has the ability to retain and release nutrients effectively.
(iii) It has good water retention capacity
(iv) It provides adequate aeration
(v) The balanced texture of specimen C provides an ideal environment for root development and penetration
(vi) Specimen C is known for its workability and ease of cultivation
(vii) It can maintain its fertility and productivity over the long term

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(2a)
-Specimen E:
(PICK ANY ONE)
(i) It is used for providing constant and easily accessible water supply to livestock.
(ii) It can be utilized as part of an irrigation system.
(iii) It can be used to rear aquatic organisms such as fish, prawns etc.
(iv) It is used in nurseries and greenhouses for seedling propagation.
(v) It is can be used for water storage.

-Specimen F:
(PICK ANY ONE)
(i) It is frequently used to provide feed for cattle.
(ii) It is used to provide feed for sheep and goats.
(iii) In poultry farming, it is used to deliver feed to chickens, and other poultry species.
(iv) They are essential in pig farming to deliver feed to pigs.
(v) It can be used to feed fish and other aquatic organisms.
(vi) They are used in horse stables and pastures to provide feed for horses.

Specimen G:
(PICK ANY ONE)
(i) Egg candler is commonly used to determine the viability of eggs before incubation.
(ii) They are used to monitor the development of the embryo inside the egg.
(iii) They can be used to determine the sex of the embryo in some poultry.
(iv) They can aid in the diagnosis of certain diseases or infections in poultry.

-Specimen H
(PICK ANY ONE)
(i) It is used for catching small fishes and other aquatic animals
(ii) They are useful tools for maintaining aquariums and fish tanks.
(iii) They are re often used in the care of aquatic pets, such as turtles, frogs, or small aquatic mammals
(iv) They are used in pond dipping activities, particularly in environmental education programs.

(2b)
-Specimen E:
(i) It has a float enclosure
(ii) It has trapezoidal faces
(iii) it has a front facing reservoir

-Specimen F:
(PICK ANY TWO)
(i) It has a rectangular shape
(ii) It has an open top

-Specimen G:
(i) It is solid
(ii) It has an opening or aperture through which the egg is placed for examination

-Specimen H:
(PICK ANY TWO)
(i) It has a net
(ii) It has a handle
(iii) It has a frame that supports the net

(2c)
(PICK ANY THREE)
(i) Dip net
(ii) Seine Net
(iii) Cast Net
(iv) Butterfly Net
(v) Traps
(vi) Hook and lines

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(За)
I: Saccharum officinarum
J: Ananas comosus
K: Zingiber Officinale

(3b)
I:
(PICK ANY ONE)
(i) Cutting of its stalk.
(ii) setts

J:
(PICK ANY ONE)
(i) Suckers
(ii) Slips

K:
(i) Rhizomes
(ii) Seeds

(3c)
I:
(PICK ANY TWO)
(i) It is used industrially in making rum
(ii) It can be used in making Charcoal
(iii) It contains fibrous stalks that can be utilized for the production of paper and fiber-based products.
(iv) The fibrous residue of sugarcane, known as bagasse, can be used as livestock feed.

J:
(PICK ANY TWO)
(i) It is used in making fruit juice
(ii) It Create employment opportunity through selling
(ii) It can be used in savory dishes as well
(iii) can be used to make preserves, jams, and jellies.

(3di)
Honeybee

(3dii)
(PICK ANY FOUR)
(i) Honey
(ii) Bee pollen
(iii) Bee bread
(iv) Propolis
(v) Beeswax
(vi) Royal jelly

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(4a)
Specimen N:
(PICK ANY ONE)
(i) It serve as an excellent bedding material for poultry houses.
(ii) It can be used as litter on the floor of the poultry house.
(iii) Wood shavings make suitable nesting material for poultry.
(iv) Wood shavings can be used as an insulating material in the walls or ceiling of the poultry house.

Specimen Q:
(PICK ANY ONE)
(i) It can be used as a source of heat in poultry houses.
(ii) It can be used to repel insects and pests in a poultry house.
(iii) Using specimen Q in the poultry house, can help minimize and control foul smells.
(iv) It can be used for brooding newly hatched chicks.

(4b)
(PICK ANY THREE)
(i) Chopped straw
(ii) Shredded Newspaper
(iii) Sawdust
(iv) Sand
(v) Hay
(vi) Coconut Fiber
(vii) Corn cobs

(4c)
(PICK ANY THREE)
(i) Specimen N has a higher absorbency compared to Specimen M.
(ii) Specimen N provides a better cushioning effect than M.
(iii) Specimen N allows for better airflow within the deep litter bedding.
(iv) Specimen M tends to generate more dust particles compared to Specimen N.
(v) Specimen N tend to last longer in the deep litter bedding than M.
(vi) Specimen N are often more cost-effective compared to Specimen M.


(4di)
(PICK ANY TWO)
(i) The chicks will try to regulate their body temperature by drinking more water when they feel hot.
(ii) They may huddle together or seek out cooler areas in the brooder house.
(iii) Chicks may become less active.
(iv) Chicks may spread their wings away from their bodies to increase heat dissipation.
(v) The chicks may open their beaks and breathe rapidly to increase air circulation and cool down their bodies.
(vi) Chicks may vocalize more when they are subjected to excessive heat.
(vii) The chicks may reduce their food intake.

(4dii)
(PICK ANY )
(i) They may huddle together in a tight group to conserve body heat.
(ii) Chicks may become more active and move around the brooder house.
(iii) The chicks may shiver to try and warm up.
(iv) The chicks may reduce their feed intake and water consumption.
(v) The Chicks may respond by fluffing up their feathers.

(4e)
(PICK ANY THREE)
(i) Specimen Q provide a localized heat source within the poultry house.
(ii) Using specimen Q can be more energy-efficient compared to other heating methods, as th charcoal burns slowly and can provide a longer-lasting heat source without frequent refueling
(iii) Charcoal combustion produces dry heat, which helps reduce the moisture content in the poultry house.
(iv) Charcoal combustion generates minimal smoke and fewer emissions compared to other fuel sources.
(v) It is generally an affordable fuel option, making it a cost-effective choice for heating poultry houses