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                  | Question 3
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                         State four characteristics of a fertile soil.                                                                  [4 marks]Discuss  briefly three factors that affect  land availability for agricultural production  in  West Africa.[6 marks] 
                        State four benefits of draining farm lands.                                                                [4 marks]List two sources of soil nitrogen.                                                                               [2 marks]                               |  
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                  | This  question was very popular among the candidates.   In 3(a), majority of the candidates were able to state four  characteristics of a fertile soil.  In  3(b) majority of the candidates could discuss three factors that affect land  availability for agricultural production in West Africa.  Further to this in 3(c), most of the  candidates were able to state the benefits of draining farmland.  Also majority of the candidates were able to  list two sources of soil nitrogen as required in (3)(d) |  
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