Completed Agriculture Science Waec and Neco Answers

WAEC-AGRICULTURAL-SCIENCE-ANSWERS
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AGRIC OBJ:
1-10: BDBCABCCDB
11-20: BBACADCACB
21-30: BBAD-DDADB
31-40: BBCBCADCDA
41-50: DADCCCBDBA

AGRIC SCIENCE ANSWERS

THEORY
(2a)
TABULATE
WEED
• Goat
• Siam weed
• Water leaf

BOTANICAL NAME
• Agaratum conizoids
• Chiomolaena odorata
• Talinum triangulare

METHOD OF DISPOSAL
• Animal
• Wind
• Animal

(2bi)
Physical factor
– Erosion
– Slope
– Temperature

(2bii)
Economical factors
– Insufficient fund to acquire land
– Land tenure system
– Land use and reformation

(2c)
– It leads to unpleasant odours
– It renders pond water undrinkable
– It leads to suffocation of aquatic animals such as fish
– It leads to eutrophication

(2d)
– Sewage should be properly treated before discharge into pond
– Avoid indiscriminate sewage disposal on water body
– Sanction should be placed on use of chemical for fishing
– There should be regulations in the use of chemical fertilizer on the farm

(3a)
Tabulate:
CROPS | Classification base of life Cycle

Mango |Perennial
Rice |Annual
Groundnut|Annual
Cotton |Perennial
Pepper |Annual
Soya bean|Annual
Oil palm |Perennial
Yam |Annual
Tomato |Ephemeras
Rubber |Perennial
Ginger |Annual
Cocoa |Perennial
Cowpea |Annual
Carrot |Biennial

(3b)
Tabulate:
Soil Component | Percentage volume
(i) soil water | 25%
(ii) Organic matter | 5%
(iii)Inorganic mater| 45%
(iv) Soil air | 25%

(3c)
[Pick Any THREE]
(i) Ring method
(ii) Foliar method
(iii) Brocasting method
(iv) Row Application
(v) Band Placement

(4a)
Spacing is the distance between the plant stands in order to allow proper ventilation within plant farm

While

Thinning refers to as the removal of excess plants or weak plants to allow the healthy one to germinate

(4bi)
Elaeis guineensis

(4bii)
(i) Dura
(ii) Pisifera
(iii) Tenera

(4biii)
By seeds

(4biv)
Deep loamy soil rich in organic matter

(4v)
9m × 9m

(4vi)
(i) Anthracnose disease
(ii) Freckle disease
(iii) Blast disease
(iv) Galadima disease

(4c)
(i) Provision of food
(ii) Provision of medicinal herbs
(iii) Provision of employment
(iv) Forest serves as Tourist centre
(v) Provision of foreign exchange
(vi) Provision of Timber
(vii) Source of Raw material

(5ai)
Flushing is a management term for providing high quality feeds, usually grains prior to the start of the breeding to increase reproductive performance.

(5aii)
Castration is defined as the destruction or removal of the testes, epididymis, and a part of spermatic cord from a male animal e.g. ram, buck, bull.

(6a)
(i) Useful life = 2009 – 2000 = 9 years

(ii) salvage value = D3000.00

(iii) Total depreciation = D12,000 – D3,000 = D9000.00

(iv) Annual depreciation = total depreciation/useful life = D9,000/9 = D1000.00

(6bi)
A demand schedule is a table which shows the different quantities of a commodity which consumers are willing to buy at various prices at a particular time.

(6bii)
Supply curve is a graphical representation of the correlation between the cost of a good or service and the quantity supplied for a given period.

(6c)
(i) Agricultural Development Programme (ADP)
(ii) Farm settlement scheme
(iii) Agro-service centres
(iv) Research institutes

(6d)
(i) Nitrogen fixing bacteria
(ii) Mulching
(iii) Decay organic matters
(iv) Through nitrosomonas

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