Waec gce agric answers 2022

2022 WAEC GCE AGRICULTURAL SCIENCE SOLUTIONS

Agriculture-Obj

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(1a)

(i)To examine the need for effective agricultural development in Nigeria.
(ii)To assess the level of agricultural development in Nigeria and to recommend ways of improving agricultural development in Nigeria.
(iii)To examine the importance of agriculture to the economy of Nigeria.
(iv)To examine the impact of agricultural development on economic development in Nigeria.
(v)To examine the relationship between agricultural development and economic development in Nigeria.

(1b)
(i)Refrigeration.
(ii) Incubation.
(iii) Milking ( machines)
(iv) Drying of produce or material.
(v) Shelling of fruits/ seeds.

(1c)
(i)Maintenance cost may be high
(ii)It can cause five Lazard
(iii)It cannot be widely used in field operation

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(2a)
(i)Igneous rocks are formed through the cooling and solidification of magma ( or lava). As hot, molten rock rises to the surface, it undergoes changes in temperature and pressure that cause it to cool, solidify, and crystallize.

(ii)Sedimentary rocks are formed when sediment is deposited out of air, ice, wind, gravity, or water flows carrying the particles in suspension. This sediment is often formed when weathering and erosion break down a rock into loose material in a source area.

(iii)Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors. Conditions like these are found deep within the Earth or where tectonic plates meet.

(2b)
(i)Technology availability and suitability.
(ii)Climatic factors.
(iii)Soil conditions.
(iv)Farming system.
(v)Marketability and profitability.
(vi)Availability and cost of planting materials.

(2c)
(i)It helps to keep tomato seeds at warm room temperature.
(ii)This prevents the tomatoes from developing skimpy roots due to infestation by micro organisms.
(iii)Growing in the nursery also keeps the tomatoes seeds stick in place among soil particles.

(2d)
{-PICK ANY THREE-}
(i)hand pruners
(ii)lopping shears
(iii)pruning saws (iv)hedge shears
(v)secateurs

WAEC GCE AGRICULTURAL SCIENCE

(3ai)
[Tabulate]

DISEASES
– Rosette

(i) CROP AFFECTED
– Groundnut

(ii) CAUSAL ORGANISMS
– Cercospora arachidicola

(iii) SYMPTOMS
– Elongated shoots.

(iv) TWO CONTROL MEASURE
– Give your roses plenty of space. …
– Control multiflora rose in your area.

(3aii)
DISEASES
– Gummosis

(i) CROP AFFECTED
– citrus crops

(ii) CAUSAL ORGANISMS
– Phytophthora fungi

(iii) SYMPTOMS
– water soaked large patches on the basal portions of the stem near the ground level.

(iv) TWO CONTROL MEASURE
– Protect from Sunscald
– Drain Water from the Base of the Tree.

(3bi)
(a) Beans
(b) Lentils

(3bii)
(a) Cinnamon
(b) Ginger

(3c)
(i) Irrigation equipment is expensive to install
(ii) Inadequate water supply for irrigation in certain areas and periods
(iii) Maintenance cost is high
(iv) Inadequate technical know
(v) The high relative humidity on irrigated land favours the growth of disease-causing organisms
(vi) Salts that are toxic to crops could be introduced to the farmland through irrigation water

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(6a)
(i) scarcity of labourers leading to high labour cost and decrease in export and hence Gross Domestic Product.
(ii) high cost of labour will lead to high cost of production
(iii) decreased food and cash crop production
(iv) decreased animal production and poor adoption of agricultural innovations

(6b)
(i)boost agricultural production through the construction of farm service centres for efficient distribution of agricultural inputs
(ii) construction of rural infrastructures such as feeder roads and earth dams
(iii) Increased level of extension contact with farmer.
(iv) bring agricultural services closer to the people in rural areas.
(v) source and make available farm inputs to farmers
(vi) helps in the reclamation of degraded agricultural lands.

(6c)
(i)soybean meal
(ii)sunflower meal
(iii)cottonseed cake
(iv)groundnut cake.