WAEC 2019 Agric Science Obj And Essay Answer – Jan/Feb Expo

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KEEP REFRESHING IN EVERY 5MIN

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*NIGERIA AGRIC OBJ*

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(Number 1)

(1a)

(1b)

(Pick four)

(i)May lead to fragmentation of land which cannot be mechanized

(ii)Land cannot be used as collateral for loans I'm some tenural systems

(iii)Large scale of farming can not be practised on small scattered farm holdings

(iv)Acquisition of land through freehold is expensive, thereby discouraging agricultural investors

(v)production is very high on land acquired by purchasing or freehold

(1c)

Farm machinery

(Pick three)

(i)Tractor 

(ii)ploughs

(iii)Harrows

(iv)planters

Farm implements

(Pick three)

(i)Cutlass

(ii)How

(iii)Rake

(iv)Hand fork

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(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

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(3a)

Tabulate: 

CROPS | Classification base of life Cycle

UNDER CROPS:

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

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(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)

(Pick two)

(i)Dura

(ii)pisifera

(iii)Tenera

(4biii)

By seeds

(4biv)

Deep loamy soil rich in organic matter

(4v)

9m × 9m

(4vi)

(Pick two)

(i)Anthracnose disease

(ii)Freckle disease

(iii)Blast disease

(iv)Galadima disease

(4c)

(Pick six)

(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

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(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.

5bi) 

-it increase animal resistance to disease 

-it improve the animals yield

5bii) 

-it increase the strength of animalals

-it weakness the size and weight of animals

5biii) 

-it prevent spread of disease 

-it reduces lost of productions

5d)

Floriculture is the Branch of agriculture which deals with production of ornamental plants like flowers while agriculture deals with production of fish and other aquatic animals.

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(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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