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WAEC 2017 Agricultural Science Essay And Obj Answers

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EXAM TIME: Friday, 28th April, 2017
Agricultural Science 2 (Essay) 9.30am – 11.40am
Agricultural Science 1 (Objective) 11.40am – 12.30pm
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Agric Science Essay 

1a)
i)West African Rice Development Agency (WARDA)
ii)International Livestock Centre for Africa (ILCA)
iii)International Crop Research Institute for Semi-Arid Tropics (ICRISAT) 
iv)International Livestock Research Institute (ILRI) 
v)Food and Agriculture Organization

1b)
i)Agriculture regularly supplies raw materials like sugarcane , jute
cotton, oilseeds, tea, spices, wheat; paddy etc.
ii)Agriculture through Farmer-households used to save their money in the bank and other financial institutions which ultimately is used by the industry owners in the form of investment.
iii)Industry regularly supplies scientific
tools and equipment’s like tractors, harvesters, pump-sets chemical fertilizers etc. to agriculture increase the per hectare production.
iv)Industry increase the market for finished agricultural goods some infrastructural development like
roads, railway, storage etc.

1ci)
i)It is used to open the new fields and to process the stony areas.
1cii)
i)it receives motion, and the other with the crank of the wheel shaft.
1ciii) 
i)it enabling the convenient carriage of heavier and bulkier loads than would be possible were the weight carried entirely by the operator.

1d)
i)power output is very low.
ii)it cannot performe certain period of the day eg raining or sunny weather
iii)diseases may affect the efficiency of the working animal.
iv)the use of animal is restricted to certain climatic zone.
V)animals can die and get fatigue easily.

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2a)
i)Availability of water(Rainfall)
ii)Availability of source of water for irrigation
iii)The type of soil or land where irrigationis to be carried out
iv)Availability of machine for installation
v)Technical know how

2b)
i)Inadequate water supply or source of water
ii)High cost of equipment
iii)Lack of adequate technical know how
iv)Excessive dissolution of salts in irrigated water prevent proper growth
v)Disturbance of movement of farm machinery

2c)
DRAW THE RECTANGLE 

2di)
i)Disc polugh
ii)Mould board plough

2dii)
i)Harrow(Disc harrow)
ii)Ridger
iii)Cultivator

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3a)
drawing

3b)
i)Poor plant growth 
ii)Leaves of plants turns reddish 
iii)Poor root development results in logging

3c)
i)Weevil..... Burrowing 
ii)Locust ...... Biting and chewing 
iii)Cotton staine.... Piercing and sucking
iv)Army worm.... Biting and chewing 
v)Scale insects... Piercing and sucking 
vi)Green spider mite..... Piercings and sucking 
vii)Capside..... Piercings and sucking 
viii)Yam beetle ..... Burrowing insects

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4ai)
i)Causal organism:Fungus(Ustilago maydis)


4aii)
ii)Mode of transmission:Spread by wind


4aiii)
Symptoms:
i)Galls on the ears
ii)The leaves turns black
iii)galls on the leaves and tassels


4aiv)
Cultural control:
i)destroy the diseased plant
ii)Use resistant varieties
iii)Treat seeds before planting


4b)
i)Taungya system
ii)Afforestation
iii)Regeneration
iv)Selective exploration
v)Forest regulation
vi)Deforestation


4ci)
i)egg producers
ii)Meat and egg producers
iii)Meat producers
iv)Game birds


4cii)
i)Egg producers:Turkey,chicken
ii)Meat and egg producers:Chicken turkey
iii)Meat producers:Chicken,Goat
iii)Game birds:Fowls


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5a)
Anthrax:
i)-Bacillus anthracis
ii)-Via respiration ie air borne
iii)-Small blisters on skin,vomiting,diarrhea
iv)
i)Use of antibiotics
i)Killing and burrying of infected animals

5bi)
i)Fish meals
ii)Blood meal
iii)Soya bean cake Groundnut cake

5bii)
i)Field peas
ii)Alfalfa

5c)
i)It is mobile
ii)It is perishable
iii)Its supply is inelastic
iv)Its reward is wage and salary
v)It is a physical and mental effort on man

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6ai)
Scarcity: This refers to the basic economic problem, the gap between limited, I.e Scarce - resources and theoretically limitless wants. 

6aii)
Scale of preference: is something used in economics to set a list of products or services in the highest demand. Or the arrangement of our want in ascending or descending order of importance or priority.

6b)
i)To protect their crops, 
ii)To protect their crops 
iii)To protect their crops livestock,
iv)To protect their crops farming v. harvesting practices from setbacks.

6c)
i)To ensure that fishing fleets adhere to all the rules

6d)
i)Honey bees provide 80% of pollination for vegetable, fruit, seed and flower crops. 
ii)They also pollinate the forage crops fed to dairy and meat animals
iii)industrial purpose
iv)employment
v)invome generation
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