Waec Agricultural Science 2015 Past Questions and Answers

Question 56:

• WAEC 2015

Sexual propagation involves the use of

A. Bulbs
B. Seeds
C. Cuttings
D. Vines

Question 57:

• WAEC 2015

A farmer bought a farm implement for 12,500 in 2007 . At the end of the fourth year he sold if for #4,300. Use information to answer question
Calculate the total depreciation of the implement

A. #16,800
B. #8,200
C. #3,125
D. #1,075

Question 58:

• WAEC 2015

The annual depreciation of the implement is

A. #4,300
B. #3,125
C. #2,050
D. #1075

Question 59:

• WAEC 2015

(a) Differentiate between land ownership by leasehold and land ownership by freehold. [ 2 marks ]
(b) Mention five ways in which non-governmental organizations contribute to agricultural
development in West Africa. [ 5 marks ]
(c) State four ways in which rural-urban migration has hindered agricultural development in West Africa. [ 4 marks ]
(d) Mention three socio-economic uses of land. [ 3 marks ]
(e) Explain two ways by which each of the following environmental factors affect agricultural production:

Soil organisms;
soil texture. [ 4 marks ]

Question 60:

• WAEC 2015

(a) State two advantages and two disadvantages of using biogas as a source of farm power. [ 4 marks ]
(b) Mention eight simple farm tools. [ 4 marks ]
(c) List two common storage structures and two processing structures that could be found on a farmstead in West Africa. [ 4 marks ]
(d) Explain the term denitrification. [ 2 marks ]
(e) Describe the following components of the soil:
(i) mineral matter;
(ii) organic matter. [ 4 marks ]