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WAEC 2017/2018 Agricultural Science 3 practical and Theory / Essay Questions & Answers.

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WAEC 2017/2018 Verified Complete Agricultural Science free Practical and answers, Objectives/essay and theory Expo runz runs now posted for Free.
Below you will find WAEC 2017/2018 Agricultural science practical free questions and answers, Objectives/essay and theory now posted for free.
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2a) Specimen A_ Ranging pole.
SP A- RANGING POLE
Reason.
(i) it is made of wood with pointed steel ends.
(ii)it is painted white and red.
(iii)it is about 2m long.
Uses.
(I) it is used to remark distance .
(ii)it is used to mark definite points.
(iii)it is used to achieve straight lines.
(iv)it can also help to determine right angles during surveying.
2b)I) specimen A
Maintenance.
(i)clean thorI oughly after used.
(ii)keep away from moisture.
(iii)keep away from termites
ii) Specimen b.
i)it should be clean properly after used.
(ii)it should be stored in a good place.
(iii)it should be kept away from moisture
iii) Specimen c:
(i)clean properly after used.
(ii)dry properly to avoid rust.
(iii)it should be kept away from moisture.
(iv)store in good place.
(4a)
N:
-Animal feed industry
-ceramic Industry
-pharmaceutical industry
O:
-paint industries
-pharmaceutical industries
-cosmetic industries
(4b)
-it causes loss of weight
-it causes loss of appetite
-it causes anaemia
-it damges some internal organs
-it prevent respiration
(4c)
-by dipping the animal
-by drenching
-by clearing bushes around
-by giving the animal injection
3ai)
G is a grasshopper H is a bean beetle 3aii. Vegetables are damaged by G Grasshoppers and beans are damaged by H bean beetle
3aiii)
i)damage crops by feeding on crop plants in the field or by infesting stored products
ii)indirect damage by spreading viral diseases of crop plants and
spreading disease among humans and
livestock
iii)Serves as food for livestock
1a)
Experiment to compare the porosity and water holding capacity
1b)
Grind loam and clay soil into fine particles, after drying in the sun. Equal masses of the dry, dry clay and dry loam are place seperately into three funnels which are blocked at the neck with cotton wool. The three funnels containing different types of soil are then placed on top of the three measuring cylinders. Then quickly pour equal amount of water into the funnels, containing each soil type. Then leave for an hour
1c)
i)Loamy
ii)Sandy
iii)Clay
1d)
i)I will ensure th three funnels containing different types of soil are placed on top of the three measuring cylinders
ii)I will ensure equal amount of water is quickly poured into the funnels containing th soil type
1e)
-sandy soil
1eii.
Because the porosity is high in sandy soil because of large pores spaces and larger particles sizes
.
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Today Thursday, 20th April, 2017
Agricultural Science 3 (Practical) 08.30am –
10.00am (1st Set)
Agricultural Science 3 (Practical) 10.30am –
12.00pm (2nd Set)
WAEC 2017/2018 Agricultural Science free questions and answers, Objectives/essay and theory now posted for free.



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