WAEC Gce 2018 AGRICULTURAL SCIENCE Obj & Essay Answers Now Available Here


(AGRICULTURAL SCIENCE)

(1a)

(i)Provision of employment
(ii)provision of income
(iii)Provision of foreign exchange
(iv)Provision of market for industrial goods
(v)Provision of raw material for industries
(vi)provision of facilities for Recreation and Tourism
(vii)provision of shelter and clothing

(1bi)
(Internal combustion engine)
(i)difficult to start (strong power needed to
start)

(ii)high need for maintenance (oil, abrasion, friction, etc.)

(1bii)
(Electricity)
(i)it can be dangerous if carelessly handled

(ii)it can cause fire hazard

(1biii)
(Wind)
(i)it cannot be stored
(ii)it is very difficult to control

(1c)
(i)Brooding of chicks
(ii)Defeathering or pluking
(iii)Debeaking
(iv)egg grading
(v)Hatchery

(2a)
(i)Problems of land tenure
(ii)problems of basic Amenities
(iii)Problems of Finance or poor financing
(iv) problems of poor Transportation and communication
(v) Lack of good agricultural education
(vi) problems of poor tools and machines

(2b)
(i) Crop rotation is the systematic planting of different crops in a particular order over several years in the same growing space. crop rotation helps manage organic soil fertility and also to help avoid or reduce problems with soil-borne diseases and some soil-dwelling insects, such as corn rootworms.

(ii) Mixed farming is an agricultural system in which a farmer conducts different agricultural practice together, such as cash crops and livestock. The aim is to increase income through different sources and to complement land and labour demands across the year.

(2ci)
(i) It Increases soil fertility
(ii) Increases crop yield
(iii) It limits concentration of pests and diseases

(2cii)
(i) Farmers can keep their fields under continuous production.
(ii) It enhances the productivity of the farm land
(iii) It increases the per capita profitability

(3a)
(i) Root of tubbers
(a) Yam
(b) Cassava

(ii)
(a) Palm Oil But
(b) Groundnut

(iii)
(a) Cowpea
(b) Groundnut

(iv)
(a) Maize
(b) Sorghum

(3b) Digestive System

*Tabulate and Label the Table Goat and Chicken*

Under Goat
(i) Four chamber stomach
(ii) No claoca
(iii) Digest cud
(iv) Regurgitation of food
(v) Absence of prorentricus

Under Chicken
(i) One chamber stomach
(ii) Presence of claoca
(iii) Doesn’t digest cud
(iv) No regurgitation of food
(v) Presence of prorentricus

(3c)

(4a)
(i)Hygroscopic water: This water is tightly held by the soil particles such that it is never available to the plant

(ii) Gravitational water: This is the water tha can drainfrom the soil under the influence of gravity

(4b)
(i) Clean and disinfect of fumigate the brooding house before the arrival of chicks
(ii) There should be 20-30 chicks per nipple during the brooding stage for proper water intake
(iii) There should be enough space in the brood chamber for the chicks to move around and thermoregulate.
(iv) Flush the water lines a few hours before placement to remove air pockets and place droplet at eye height.

(4c)
(i) Virus
(ii) Herpesvirus of turkeys (HVT)
(iii) Newcastle Disease
(iv) Virus
(v) protozoan
(vi) anticoccidial vaccines
(vii) Bacteria

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