waec 2008 agriculture Past Questions And Answers

1

The implement used for pulverizing the soil is the

A. planter
B. ridger
C. harrow
D. plough

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2

swollen shoot disease of cocoa is caused by

A. virus
B. fungus
C. bacteria
D. nematode

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3

An incubator is important in supplying

A. heat for day-old chicks
B. heat for embryo development
C. light for cadling eggs
D. feed to chicks

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4

The main reason for removing the barks of cassava tubers before processing the tuber is to

A. reduce the water content
B. improve the protein content of products
C. improve the shelf life of products
D. reduce the cyanide content of products

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5

(a) Define crop improvement. [2 marks]

(b) Copy and complet the table below based on Mendel's Law of Indepen-dent Assortment of Genes (Dihybrid inheritance).

TC	Tc	tC	tc
TC	TTCC
Tc	Ttcc
tC	ttCc
tc	ttcC

Use the following information: T = Tall; C = Coloured; t = Dwarf; c = White. (Where T and C are dominant character; while t and c are recessive TC TTCC characters) [6 marks]

(c) Calculate the percentage of plants in (b) above that are: (i) Tall coloured; (ii) Tall white; (iii) Dwarf coloured; (iv) Dwarf Tc Ttcc white [8 marks]

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6

A farm surveying equipment made of steel and used for measuring short distance is called

A. prismatic compass
B. measuring tape
C. gunter's chain
D. theodolite

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7

A farmer noticed that one of his cows has high fever, blood-stained diarrhoea and often grinds its teeth. This shows that the cow is infected by

A. rinderpest
B. anthrax
C. brucellosis
D. aspergilosis

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8

(a)(i) Explain the term farm surveying. [2 marks] (ii) State four reasons why farm surveying is important [4 marks]

(b) Enumerate six problems facing agricultural development in West Africa.

(c) List four factors that may affect the efficiency of draught animals. [4 marks]

Explanation

2(a)(i) Explanation of farm surveying: Farm surveying is the process of measuring and mapping out the position, topography, size and boundary of an area of farmland.

(ii) Reasons why farm surveying is important

-It helps to determine the size or hectarage of farmland

- Used for feasibility studies

- Enables the farmers to make proper use of the land

- Farmers can determine where to site and locate certain buildings or structures in the farm

- Farm maps or soil maps help in planning the farmstead

- Results from surveying help to describe the characteristics and features of the various soil units used for soil classification.

- The yield or productivity of farmland can be projected

- Results of farm survey can be used as collateral for conditions securing loan from financial institutions

- Facilitates acquisition of certificate of occupancy (c of o)

- Surveying helps to determine the gradients of the farmland

- Roads and other access ways can be constructed with knowledge derived from surveying.

(b) Problems facing agricultural development in West Africa (i) Inadequate finance/credit facilities (ii) Poor rural infrastructural facilities(iii) Low level of technical know - how (iv) Poor marketing system (v) .Poor pricing system (vi) Inadequate transport facilities (vii) Inadequate storage facilities (viii) Inadequate processing facilities (ix) Socio-cultural constraints (x)Poor extension services (xi) Poverty among farmers (xii) Conservatism(xiii) Inadequate supply (xiv) Poor land tenure system(xv) Environmental degradation e.g oil spillage, desertification, drought, erosion, deforestation etc.(xvi) Problem of Pests (xvii) Problem of Diseases (xviii) Inconsistency in government policies/political instability. (xix) Use of crude tools (xx) Inadequate/expensive farm inputs.

(c) Factors that may affect the efficiency of draught animals Health of the animal/diseases, Pests, Food intake, Breed of the animal/genetic make-up, Weight of the animal, Age of the animal, Poor management of the animal, Harness used for hitching, Sex of the animal, Training given to the animal, Climate/environmental factors

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9

The term supplying in crop production means

A. pruning excess branches of crops
B. spacing out crops during planting
C. replacing ungerminated seeds on seedbeds
D. adding enough fertilizer to the crop

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10

Fertile eggs will be produced by breeders if the

A. laying units are illuminated
B. cocks are always kept with the hens
C. hens are not allowed to brood
D. eggs collected are kept at the correct temperature

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TC	Tc	tC	tc
TC	(TTCC)	TTCc	TtCC	TtCc
Tc	TTcC	(TTcc)	TtcC	Ttcc
tC	tTCC	tTCc	ttCC	ttCc
tc	tTcC	tTcc	(ttcC)	(ttcc)

Waec 2008 Agriculture Past Questions And Answers

Correct Answer: C. harrow

Correct Answer: A. virus

Correct Answer: B. heat for embryo development

Correct Answer: D. reduce the cyanide content of products

Explanation

Correct Answer: C. gunter's chain

Correct Answer: A. rinderpest

Explanation

Correct Answer: C. replacing ungerminated seeds on seedbeds

Correct Answer: B. cocks are always kept with the hens