WAEC Agricultural Science 2012 Past Questions

Practice each question, then open it to see the full details.

Question 9

(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) 

Theory
Question 10

(a) State the law of diminishing returns in agricultural production. (2 marks)

(b) The table below shows the relationship between quantities of fertilizers used and the corresponding yields of sorghum.

Quantity of fertilizer (Bags) Sorghum yield (kg)
0 8
6 30
12 50
18 90
24 140
28 170
32 190
36 200
40 200
46 190

(i) Use the table to draw an input-output graph (3 marks) 
(ii) Explain the relationships between fertilizer input and sorghum yield. (2 marks)

 (c) Enumerate four functions of an agricultural extension agent. (4 marks)

(d) State five benefits of commodity boards in the marketing of agricultural produce in West Africa. (5 marks) 

Theory