What is the ecological, climatic zone of transition in Africa between the Sahara Desert to the north and the Sudanian Savanna to the south?

What is the ecological, climatic zone of transition in Africa between the Sahara Desert to the north and the Sudanian Savanna to the south?

• A. Sahel
• B. Savanna
• C. Shanty towns
• D. Sustainability

Answer: (A)

The main idea here is a transitional climatic and ecological zone. The Sahel is that semi-arid belt just south of the Sahara where rainfall is limited and highly seasonal. As you move south from the desert into this zone, the environment gradually shifts from desert conditions toward the more moisture-loving Sudanian Savanna, creating a distinct ecological boundary. This zone is defined by a sharp seasonal pattern: a short, often intense wet season and a long dry season, with vegetation composed of drought-tolerant grasses and scattered shrubs and trees. It sits between the hyper-arid desert to the north and the greener savanna to the south, marking a clear transition in climate and land cover. The other terms don’t fit because the savanna describes a broader vegetation type farther south, shanty towns are urban settlements, and sustainability is a concept rather than a climatic zone.

The main idea here is a transitional climatic and ecological zone. The Sahel is that semi-arid belt just south of the Sahara where rainfall is limited and highly seasonal. As you move south from the desert into this zone, the environment gradually shifts from desert conditions toward the more moisture-loving Sudanian Savanna, creating a distinct ecological boundary. This zone is defined by a sharp seasonal pattern: a short, often intense wet season and a long dry season, with vegetation composed of drought-tolerant grasses and scattered shrubs and trees. It sits between the hyper-arid desert to the north and the greener savanna to the south, marking a clear transition in climate and land cover. The other terms don’t fit because the savanna describes a broader vegetation type farther south, shanty towns are urban settlements, and sustainability is a concept rather than a climatic zone.