Concept:
World agricultural systems are classified based on the level of technology, crop types, and the objective of production (consumption vs. sale).
Step 1: Matching Agricultural Types to Characteristics.
• A. Primitive Subsistence Agriculture: Also known as shifting cultivation or Slash and burn (A-IV). It involves clearing a patch of forest, burning the vegetation, and planting crops for a few years until soil fertility declines.
• B. Intensive Subsistence Agriculture: Practiced in densely populated regions like Monsoon Asia. It is often Wet paddy dominated (B-III), where land is used very intensely to support large populations.
• C. Plantation Agriculture: A commercial system focusing on a single cash crop (tea, coffee, rubber). It was introduced by Europeans in colonies (C-II) to meet global market demands.
• D. Extensive Commercial Grain Cultivation: Found in interior semi-arid lands (like the Prairies or Steppes). It uses large farms and is highly mechanized (D-I), focusing on wheat or corn for sale.
Step 2: Conclusion.
The correct matching sequence is A-IV, B-III, C-II, D-I.