2.2 The market for a brand of yellow maize is in equilibrium. Explain, with the aid of a separate diagram in each case, the effects which each of the following is most likely to have on the equilibrium position: a) Due to the serious drought, there is a reduction in the aggregate harvest. b ) A fall in the price of fertiliser, a key input in the production of the yellow maize. C) The price of beef has gone up tremendously and yellow maize is a key feed for hoc animals (9)