(a) List four factors that cause a change in supply of agricultural produce [4 marks] (b) Distinguish between fixed cost and variable cost giving two exampl...

(a) List four factors that cause a change in supply of agricultural produce [4 marks]

(b) Distinguish between fixed cost and variable cost giving two examples in each case [6 marks]

(c) Example the following agricultural extension teaching methods: (i) posters; (ii) field trips. [6 marks]