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

Some regions are marked by numbers on the map, match them with the right place:

1-Praries, 2-Pampas, 3-Velds

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.