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UI Post-UTME Geography 2017 (Model questions) Question 18

Question 18

Soils

The term 'catena' describes the

  1. A.effect of topography on soil series
  2. B.sequence of modified soils along a slope profile
  3. C.changes in soil fertility along a slope profile
  4. D.group of soils on sedimentary rocks
  5. E.colour differences in soils along a slope profile
Show the answer and explanation

Answer: B (sequence of modified soils along a slope profile)

Explanation

A catena is the sequence of different soils found from the top to the bottom of a slope. The soils differ because drainage, erosion and deposition change down the slope.