Neco 2024 Geography Question 8

Practice essay / theory question 8 from the 2024 Neco Geography examination. This question covers Drainage, Fluvial processes .

Neco 2024 Geography Essay / Theory

Topics: Drainage Fluvial processes

Question 8 NECO • 2024 • GEOGRAPHY • essay

River X originates at an elevation of 820 m in the highlands of central Nigeria and flows 210 km to the Atlantic coast, where it reaches sea level. A major tributary, River Y, joins River X 150 km downstream from River X’s source. River Y starts at 560 m elevation and runs 80 km before its confluence with River X. The upper basin of River X is underlain mainly by granite, while the lower basin consists chiefly of shale and laterite. Answer the following:

Question Parts

( a )

Calculate the average gradient (in m km⁻¹) of River X from its source to its mouth, and of River Y from its source to its confluence with River X.

( b )

Using the lithological information, explain why the drainage pattern in the upper basin is likely dendritic whereas the lower basin tends towards a trellis pattern.

( c )

Deforestation in the basin has increased flood frequency. Propose two engineering and two non‑engineering measures to reduce flood risk, and justify how each measure addresses the underlying causes.

Detailed Solution & Marking Scheme

Get the step-by-step solution, key points required by examiners and detailed marking guidance through the Edcrib AI Tutor.

Reveal Answer

About This Question

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

The question covers Drainage, Fluvial processes .

View More Neco 2024 Geography Questions More Neco Practice Questions Back to Questions

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows

Chat with Support