Consider the following statements regarding extensive commercial grain cultivation 1 It is practiced...........

Geography and Environment (RAS) Agriculture

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Consider the following statements regarding extensive commercial grain cultivation:

1. It is practiced in the interior parts of semi-arid lands of the mid-latitudes.

2. It includes corn as a principal crop.

3. There is high yield per acre but low yield per person.

4. This is best developed in Eurasian steppes, American Prairies, Velds of South Africa, and Australian Downs.

Which of the statements given above is/are correct?

1 and 4 only

2, 3 and 4 only

3 only

1, 2. 3 and 4

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Explanation:

Statement 1 is correct. Commercial grain cultivation is practiced in the interior parts of semi-arid lands of the mid-latitudes.
Statement 2 is incorrect. Wheat (not corn) is the principal crop, though other crops like corn, barley, oats and rye are also grown.
Statement 3 is incorrect. The size of the farm is very large, therefore the entire operations of cultivation from ploughing to harvesting are mechanized There is low yield per acre but high yield per person. Combine crews are capable of harvesting grain over many hectares in a single day.
Statement 4 is correct. This type of agriculture is best developed in Eurasian steppes, the Canadian and American Prairies, the Pampas of Argentina, the Velds of South Africa, the Australian Downs and the Canterbury Plains of New Zealand.