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JAMB Biology 2003 Question 33

Question 33

Habitats and Biomes

The correct sequence of biomes from northern to southern Nigeria is

  1. A.Guinea savanna → sudan savanna → tropical rain forest → sahel savanna → estuarine
  2. B.Estuarine → tropical rain forest → guinea savanna → sahel savanna
  3. C.Sahel savanna → tropical rain forest → estuarine → guinea savanna
  4. D.Sahel savanna → sudan savanna → guinea savanna → tropical rainforest → estuarine.
Show the answer and explanation

Answer: D (Sahel savanna → sudan savanna → guinea savanna → tropical rainforest → estuarine.)

Explanation

Rainfall increases from north to south. So the order is Sahel savanna, Sudan savanna, Guinea savanna, rain forest, and finally the estuarine (mangrove) swamps at the coast.