2021 WAEC Agricultural Science Objective Essay Question And Answer

2021 WAEC Agricultural Science Objective Essay Question And Answer.

Agricultural Science Objective Theory Question And Answer.

Essay

(1)(a) Explain each of the following terms as used in animal production:
(i) Dipping;
(ii) Dry cow;

(iii) Culling;
(iv) Quarantine
(b) Describe the life cycle of roundworm (Ascaris lumbricoides)

(c) Explain the term farm mechanization.
(d) Name four tractor coupled implements

(2)(a) State six limitations of farm mechanization in West Africa.
(b) Suggest six ways of encouraging farm mechanization in West Africa.

(c) List four methods of identification in cattle management.
(d) What is debeaking in poultry management?

(3)(a) Mention two processes that release carbon dioxide into the atmosphere
(b) Name four storage pests of crops
(c) State two functions of Potassium in crops.

(d) List three ways by which each of the following biotic factors affects agricultural production:
(i) parasites;
(ii) Soil organisms.
(e) State four advantages of zero tillage.

Objective

1. The device which helps to regulate heat in an incubator is the
A. thermometer.
B. hygrometer.

C. insulator.
D. thermostat.

2. Which of the following statements about crop production is
Not correct?
A. Onions are commonly grown in the rainforest zones.

B. Yam, cocoyam and cassava are grown in both the rainforest and the savanna regions.
C. Some foreign vegetable crops are grown in and around urban centres.

D. Carrots are commonly grown in the savanna and moist vegetation belts.

3. Which of the following is a disadvantage of surface irrigation?
A. The quantity of water lost is high.

B. Water is evenly distributed over the farmland
C. It is very cheap to operate.
D. The system is suitable for paddy rice cultivation.

4. Fine soil tilth is produced by the use of
A. Harrow.
B. Plough.

C. Ridger.
D. Mower.

5. The problems of farm mechanization in West Africa include the following
except
A. reduction of farm drudgery.
B. small farm holdings.

C. poverty of farmers.
D. poor topography.

(a) Explain each of the following terms as used in animal production: (i) Dipping; (ii) Dry cow; (iii) Culling; (iv) Quarantine

(b) Describe the life cycle of roundworm (Ascaris lumbricoides) (c) Explain the term farm mechanization. (d) Name four tractor coupled implements

(2)(a) State six limitations of farm mechanization in West Africa. (b) Suggest six ways of encouraging farm mechanization in West Africa.

(c) List four methods of identification in cattle management. (d) What is debeaking in poultry management?

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