WAEC Agricultural Science 2013 Past Questions

(a) State four benefits of agriculture to the economy of West African countries. [4marks]

{b). Enumerate four functions of agro-service centres in your country [4marks]

(c) Outline four routine tractor maintenance practices. [4marks]

(d) State two functions of each of the following parts of the farm tractor (i) three-point linkage (ii)hydraulic lever[4marks]

(a) Explain the term farm mechanization [2marks]

(b) Mention three advantages and three disadvantages of farm mechanization. [6marks]

(c) Give two merits of the use of draught animals in farm operations. [2marks]

(d) Outline three roles of science and technology in agricultural development under the following headings. (i)pest and disease contlrol; (ii)meteorology and climatology. [6marks]

(a) Mention two sources of irrigation water [2marks]

(b)Enumeratoin two advantages and two disadvanteges of irrigating farmlands [4marks]

(c)List two ways by which the soil loses nutrients. [2marks]

(d)Give two reasons for manuring in crop production [2marks]

(e)State two ways by which each of the following envrionmental factors affect agricultural production: (i) temperature: (ii) soil micro-organisms; (iii) wind. [6marks] 

(a)List three edaphic factor that influence crop growth. [3marks]

(b) Explain the following terms as used in soil and water conservation: (i)gravitational water(ii)hygroscopic water [4marks]

(c) State two deficiency symptoms of each of the following nutrient elements in crops:(i)nitrogen; (ii) phosphorus; (iii)potassium [6marks]

(d) State three benefits derived from draining farmlands. [3marks]

(a) Define the term nursery as used in crop production[2marks]

(b) Give three reasons for establishing a nursery in crop production.[3marks]

(c) Mention three characteristics of weeds that make them difficult to control [3marks]

(d) List two methods of controlling weeds.[2marks]

(e)State three ways by which diseases are spread among crops [3marks]

(f) Mention three effects of diseases on crops [3marks]

(a) List four cereal crops grown in West Africa [2marks]

(b) State three benefits of forest to the economic development of your country.[3marks]

(c) With the aid of a diagram, describe the life cycle of the variegated grasshopper. [6marks]

(d) List three cultural methods of controlling crop pests.[3marks]

(e) Give two uses of oil palm. [2marks] 

(a) Give three reasons why fish farming is important. [3marks]

(b) State three factors that influence the choice of a suitable site for a fish pond. [3marks]

(c) Mention two sources of each of the following feed nutrients: (i) water; (ii) proteins; (iii) carbohydrates; (vi)vitamins [8marks]

(d) Mention two ways by which roundworm infestatoin is of economic importance in livestock production. [2marks] 

(a) What is animal improvement? [2marks]

(b) Give three aims of animal improvement.[3marks]

(c) Define each of the following terms as used in animal reproduction: (i)parturition; (ii)gestation period. [4marks]

(d) Name i three systems in the body of farm animals.{3marks]

(e) Mention four advantages of castration in animal production. [4marks] 

(a) Define the term balance sheet.

(b) The financial data of Omega Dairy Farms Ltd as at December 31st 2012 are shown below:

Cash at bank -  200,000.00 
Cash in hand - 70,000.00 
Dairy cattle - 5,000.000.00 
Milk - 300,000.00 
Loans - 3,000,000.00 
Initial capital - 4,000,000,00 
Interest on loan payable - 600,000.00 
Account receivable - 1,000,000.00 
Taxes payable - 500,000.00 
Milking machine - 1,500,000.00 
Animal feed - 100,000.00 

Use the data to prepare a balance sheet for Omega Dairy Farms Ltd as at December 31st 2012 (c) State two ways in which the balance sheet is important (d) Is the farm credit-worthy? Give a reason for your answer

(a) Define the following terms as used in agricultural economics: 
(i) assets; 
(ii) Liabilities

(b) Mention three problems encountered by farmers in obtaining agricultural credits
(c) Enumerate four roles of an agricultural extension agent
(d) Outline five roles of farmer co-operative societies in agriculture