Given below is the map of areas of Extensive Commercial Grain Farming. Analyse the maps and answer the following questions:

Number 4 and 5 on map indicate which region:

4-Downs and 5-Steppes

Extensive commercial grain cultivation is best developed in: 1. Canadian and American Prairies, 2. Pampas of Argentina, 3. Velds of South Africa, 4. Australian Downs and the Canterbury Plains of New Zealand 5. Eurasian Steppes.