Which of the following pairs of agricultural types occupies the largest percentage of the world’s total land area? Plantation agriculture and specialized horticulture A Cattle ranching and Mediterranean agriculture B Wheat farming and dairying C Shifting cultivation and nomadic herding D Intensive rice cultivation and subsistence farm

The correct answer is the letter D. Intensive rice cultivation

Explanation:

Subsistence agriculture is characterized by low technical level in small production units with the objective of directly feeding family members. Examples of low-intensity agricultural activities are carried out on small and medium-sized farms, usually with family labor. It occurs in low-valued areas, which do not interest commercial agriculture, however it is practiced worldwide. On the other hand, rice is the third most planted crop in the world, with approximately 160 hectares cultivated per year.

the denominator has a very specific role.

well, that's easy; the answer's c, "it reduces contamination of the water and substrate of the estuary."