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100% Real Waec Gce 2015 Agricultural Science Practical Answers.




(1a)
A-Shear
B-sickle
C-rake
(1aii)
A-for trimming branches of flowers & trees
C- for gathering dead leaves, stones & other debris
(1aiii)
-lubricating with oil
-store in cool dry place after use
(1bi)
1500/33900 * 100 = 4.42%
(1bii)
-bad bread flexible pelvic bone
-it has a hard & pliable abdomen
-possesses narrow dry cocoa
(1biii)
-good feeding
-enabling a wide, moist cloaca
-enabling a moist glossy plumule
-use of drugs
(2a) A four year course crop rotation system.
(2b)
Tabulate:
Plot1, Plot II, Plot III, Plot IV
Year 1, Yam, Cowpea, Cassava, Maize
Year 2, Maize, Yam, Fallow, Cassava
Year 3, Cassava, Maize, Groundnut, Fallow
Year 4, Fallow, Cassava, Yam, Groundnut
(2c)
(i) crops likely to be affected by the same insect
pest and diseases should not follow each other.
(ii) There should be a short period of fallow during
which cover crops can be planted to add nitrogen to
the soil.
(iii) Deep rooted crop should not follow each other
instead deep rooted crops should follow shallow
rooted crops.
(2d)
(i) Crop rotation saves land,time,energy and money.
(ii) It checks erosion since the soil is not exposed.
(iii) It reduces the incidence of pest and diseases.
(2e)
(i) Lay farming
(ii) Mixed farming
(3i) Tapping of rubber
(3ii)
I - cut for latex to collect in
II - aluminium slip
III - Cup for collecting latex
IV - Loose wire to hold cup
(3iii)
(i) To enable latex to leak out of the tree
(ii) It guides latex into cup
(iii) It collect latex
(iv) It holds cup firmly to the tree
(3iv) Rubber
(3v)
plastic industry:
TABULATE: INSECT-PEST & MODE OF FEEDING:
*white fly- piercing and sucking
*stembor-biting and chewing
*cotton stainer-piercing and sucking
*cassava mealy bug-biting and chew
(4) Trading profit and loss account:
DRAW A TABLE:
-ON THE LEFT SIDE, Put down the following:
N
Cost of input 500
Produce in store 120//620
Less value of crops on the field 450//170
Cross profit 670//840
Publicity 120
Transport exp 620
Wages 150
Miscellaneous exp 40
Rent 50 // 980
Net loss b/d N310
-ON THE RIGHT SIDE:
N
Sales of Produce 840//840
Gross profit b/d 670
Net loss 310//980
(4b)
(i) Increase in sales
(ii) Cutting down of expenses
(iii) Reduce transport expenses
(iv) Maximise the profit
===COMPLETED===





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