Verified Waec GCE 2018 Agric Science Obj & Theory Answers

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Verified Waec GCE 2018 Agric Science Obj & Theory Answers
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    WAEC GCE AGRIC SCIENCE



    AGRIC OBJ
    1 DADBAACCBA
    11 AABBACBDCB
    21 DDCACABCBD
    31 CCBBCABBBD
    41 CCCADCCACA



    (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.)


    ii) Electricity
    I) its Supply not always
    regular Nigeria
    ii) is dangere's ad Fatal if correctly handled.

    iii) wind
    - Supply is sporadic and
    uncertain as power depends
    on the wind.
    - it commot be stored and its is difficult to control

    1c)
    (i) Brooding of chicks
    2) Depeathering or plucking
    3) debeaking
    4) egg grading
    5) hatchery
    ===========


    (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)
    (i) To know the actual inventory of the system product
    (ii) To know the number of livestock and crops available in the farm
    (iii) To estimate the net income that will be gotten after sales of farm produce
    (iv) Continuity of business
    (v) To determine the profit and loss accrued

    =================


    (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

    ================

    4ai)this water is typically held by the soil particles such that it is never available to the plant.

    ii) GRAVITATIONAL WATER: This is the Water that can drain from the soil under the influence of gravity

    4bi) clean and fumigate the brooding house before the arrival of chickz

    ii) the floor of the brooder house shool be made concrete and withe the walls which must be ratproof

    iii) cover the floor with clean wood shavings before the arrival of chicks

    iv) clean the feeders and waterers regularly and replace sigh raw feed and fresh water.


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




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