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Question

Difficulty: EasyBiomes and Aquatic/Terrestrial Habitats

The northernmost ecological zone in Nigeria is characterized by sparse vegetation, low rainfall, and prolonged dry seasons. Which biome does this region belong to?

  1. Sahel savannaAnswer
  2. B
    Southern Guinea savanna
  3. C
    Tropical rainforest
  4. D
    Mangrove swamp

Answer

Sahel savanna
The Sahel savanna is Nigeria's northernmost terrestrial biome. It borders the semi-arid regions, receiving minimal annual rainfall and supporting drought-resistant vegetation like acacia and short grasses.

Step-by-Step Solution

1
Identify the geographical orientation and abiotic profile described
The region is located at the northernmost boundary of Nigeria with low rainfall and long dry seasons
Vegetation zones in Nigeria follow a precipitation gradient from south to north
2
Match the environmental profile to the correct Nigerian biome
The Sahel savanna forms the northernmost vegetation band adjacent to the Sahara desert edge
Sahel savanna receives the least rainfall (300-500 mm annually) among Nigerian terrestrial biomes

Key Concept

Distribution and Abiotic Profiles of Nigerian Local Biomes
Estimated Time:45s
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Topics

Biomes and Aquatic/Terrestrial Habitats

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