Question

Difficulty: MediumPopulation Distribution and Density Factors

Match each population density zone with the primary physical, historical, or socio-economic factor that determines its settlement density.

  • Industrial-Urban Conurbations (e.g., Lagos-Ibadan Corridor)Concentration of commercial infrastructure, manufacturing industries, and tertiary employment opportunities
  • Intensive Alluvial Farming Basins (e.g., Kano-Sokoto Fadama Lands)Fertile river-deposited soils, high agricultural carrying capacity, and traditional irrigation practices
  • Highland Refuge Belts (e.g., Mandara Mountains)Historical defensive advantages against external attacks combined with intensive hillside terrace farming
  • Equatorial Rainforest Interior (e.g., Congo Basin)Leached infertile soils, dense vegetation canopy, and prevalence of disease vectors such as tsetse flies

Answer

The correct matches pair Industrial-Urban Conurbations with commercial and industrial economic opportunities; Intensive Alluvial Farming Basins with fertile soils and irrigation capacity; Highland Refuge Belts with historical defensive needs and terrace farming; and Equatorial Rainforest Interior with leached soils and disease vectors.
Each zone is correctly matched with its primary controlling factor: industrial-urban corridors attract population via economic pull factors; alluvial basins support high density through fertile soils and water resources; highland refuge belts maintained high historical densities for defense and terrace agriculture; and equatorial rainforests exhibit low density due to leached soils, heavy canopy cover, and insect vectors.

Step-by-Step Solution

1
Analyze the urban-industrial zone (Industrial-Urban Conurbations).
Identify that modern urban growth and high density stem from industrialization, commercial services, and job availability.
Socio-economic factors drive urban population concentration.
2
Examine rural agricultural high-density zones (Intensive Alluvial Farming Basins).
Connect fertile fadama soils and river water supply to high agricultural carrying capacity.
Physical water availability and soil fertility govern rural agricultural settlement.
3
Evaluate historical highland settlements (Highland Refuge Belts).
Associate mountain environments with defense against historical slave raids/conflict and hillside terrace cultivation.
Historical security factors can override physical constraints to create localized high densities.
4
Evaluate rainforest interior constraints (Equatorial Rainforest Interior).
Identify physical barriers like soil leaching, dense canopy, and tsetse fly infestation.
Harsh physical environments and vector-borne diseases restrict human population density.

Key Concept

Factors Influencing Population Distribution and Density
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