(a)     What is labour in agricultural production?               [2 marks]
                        (b)     Distinguish between the following pairs of  terms as used in agricultural enterprise:
                        
                          -    farm record and farm account;
-   inventory record and production record.             [8  marks]                        
(c)     Explain the following agricultural  extension teaching methods:
                        
                          -   group discussion;
-   office calls;
-   use of projected materials.           [ 6 marks]