Regional Climate and Vegetation

The Central Asian Steppe is characterized by extreme continental climate with very scanty rainfall, making it suitable primarily for nomadic pastoralism. The African Savannah has more rainfall and is not known for nomadic herding as the primary livelihood pattern. The North American Prairie has moderate rainfall and was not historically dominated by nomadic herders. The Siberian Tundra has extreme climate but is not characterized by grasslands suitable for herding. The Central Asian Steppe perfectly matches the description of extreme climate, scanty rainfall, and nomadic herding traditions. > KEY POINT: Central Asian Steppe = Extreme cold, Minimal rainfall, Nomadic pastoralists. Answer: (b).