MARKING SCHEME FOR SS3 AGRICULTURAL SCIENCE MOCK 2 EXAMINATION

SECTION A: OBJECTIVE TEST

Allocation of Marks: 1/2 mark each = 30 marks

SECTION B: ESSAY

1. (a) Six reasons why Agriculture has not been fully mechanized in West Africa are:

• The problems of the land tenure system.
• Inadequate farm machinery.
• High cost of purchasing farm machinery.
• Different types of soil.
• Topography of West African land.
• Inadequate manpower.
• Scattered farm holding.
• Poverty level of farm.           (Any 6 @ ½ mark= 3marks)

(b) Four sources of farm power

• Animal power.
• Human power.
• Wind power.
• Solar power.   
• Mechanical power.    
• Water power.      
•  Electrical power.     
• Biogas.   (Any 4 @ ½  mark= 2marks)

(c) Subsistence Agriculture is practised in rural areas and involves planting crops and rearing livestock to cater for the needs of the farmer and his family.     (1 marks)

• Land can be defined as the solid part of the earth’s crust which supports the cultivation of crops and the rearing of animals for man’s use.