Neco Model Questions Vol1 2024 Geography Question 8

Practice essay / theory question 8 from the 2024 Neco Model Questions Vol1 Geography examination. This question covers Drainage, River Processes, Flood Management, Land‑use .

Neco Model Questions Vol1 2024 Geography Essay / Theory
Topics: Drainage River Processes Flood Management Land‑use
Question 8 NECO_MODEL_QUESTIONS_VOL1 • 2024 • GEOGRAPHY • essay

A river basin in Nigeria covers an area of 250 km². The mapped stream network consists of a main river that is 30 km long and five tributaries with lengths of 12 km, 8 km, 5 km, 4 km and 2 km respectively. The river rises in a granitic highland, traverses a zone of shale, and finally discharges onto a coastal plain. Answer the following questions.

Question Parts

( a )
Calculate the drainage density of the basin. Show all steps of your calculation.
( b )
Discuss how the change in lithology from granitic highland to shale influences the longitudinal profile and channel pattern of the river.
( c )
Using the drainage density obtained in part (a), analyse the likely flood response of the basin during a high‑intensity storm. Provide at least two reasons linked to the drainage characteristics.
( d )
Propose two land‑use management measures that could reduce flood risk in this basin and justify how they would be effective.

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About This Question

This is Neco Model Questions Vol1 2024 Geography Question 8. It is one of the essay questions from the 2024 Neco Model Questions Vol1 Geography examination.

The question covers Drainage, River Processes, Flood Management, Land‑use .

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