WAEC 2016 AGRIC PRACTICAL QUESTION AND ANSWERS FREE EXPO

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 damages some internal organs
-it prevent respiration
4c)
-by dipping the animal
-by drenching
-by clearing bushes around
-by giving the animal injection
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2a)
Specimen A is: RANGING POLE. It is made of wood. It is
generally circular in section and it has a pointed end and
also painted black
2b)
Spe A
i)ranging pole
ii)it is used for marking station
iii)it is used for marking straight line
Spe B
i)survey pin
ii)it is used for. Marking off chain off chain length as
measured
iii)it can also b used for marking station
Spe C
i)measuring Tape
ii)it is used for taking measurement of breadth, length and
height
iii)it is used for marking one side with metric units and other
side with the imperial unit
2c)
I. specimen A
Maintenance.
i)clean thoroughly after use.
ii)keep away from moisture.
iii)keep away from termites
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
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.
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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
Because the porosity is high in sandy soil because of large
pores spaces and larger particles sizes
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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