Waec Agricultural Science 2012 Past Questions and Answers

Question 56:

• WAEC 2012

(a) What is forest reserve? (2 marks)
(b) State two advantages of taungya system of farming to each of the following: (i) farmers; (ii) foresters. (4 marks)
(c) With the aid of a diagram, describe the life cycle of yam beetle (Heteroligus metes). (6 marks)
(d) State two advantages of organic fertilizers over inorganic fertilizers. (2 marks)
(e) Name two varieties of oil palm. (2 marks)

Question 57:

• WAEC 2012

(a) (i) What is incubation in poultry production? (2 marks) (ii) State two advantages and two disadvantages of natural incubation. (4 marks)
(b) List four factors that affect pasture establishment in West Africa. (4 marks)
(c) In a tabular form, state the causal organism and two symptoms of each of the following diseases of farm animals: (i) Brucellosis. (ii) Newscatle. (6 marks) .

Question 58:

• WAEC 2012

(a)(i) Explain the term malnutrition as used in animal production (2 marks) (ii) State four effects of malnutrition on farm animals. (4 marks)
(b) Write short notes on the following methods of rangeland improvement: (i) rotational grazing.(ii) reseeding (iii) controlled stocking (6marks)
(c) State four objectives of animal improvement programmes west Africa. (4 marks)

Question 59:

• WAEC 2012

(a) Distinguish between the terms loan and subsidy as used in agricultural financing. (2 marks)
(b)(i) Define the term supply. (2 marks)
(ii) Use the information in the supply schedule below to draw a supply curve. (3 marks)

Price of Cocoa (Le)	Supply of Cocoa (tonne)
10,000	450
15,000	550
20,000	700
25,000	1000
30,000	1,700

(iii) Use the supply curve drawn to explain the relationship between supply and price. (2 marks)
(c) State two advantages and two disadvantages of using farm and home visits as a teaching method in agricultural extension work. (4 marks)
(d) Mention three characteristics of agricultural produce in relation to marketing (3 marks)