Give geographical reasons : Extensive agriculture is a commercial type of agriculture.

Answer: In extensive agriculture crops are grown on very large farms with machines mainly for sale in national and international markets, not for the farmer's own consumption, so it is commercial.

• It is practised in thinly populated temperate grasslands such as the Prairies of North America, the Pampas of Argentina, the Steppes of Eurasia and the Downs of Australia.
• Farms are very large (hundreds of hectares). Labour is scarce, so machines like tractors and combine harvesters are used, and a single crop, mainly wheat, is grown (monoculture).
• Production is very large while the local population is small, so the surplus grain is sold and exported. The aim is profit, which makes extensive agriculture a commercial type of farming.