Neco 2017 Geography Question 6

Practice essay / theory question 6 from the 2017 Neco Geography examination. This question covers Rocks, Rock cycle, Weathering, Soil formation .

Neco 2017 Geography Essay / Theory
Topics: Rocks Rock cycle Weathering Soil formation
Question 6 NECO • 2017 • GEOGRAPHY • essay

Rocks constitute the basic material of the Earth's crust and are distributed unevenly across Nigeria. Different geological zones expose distinct rock types that influence land use, soil development and natural resources.

Question Parts

( a )
Distinguish between igneous, sedimentary and metamorphic rocks by describing (i) their origin, (ii) typical mineral composition, and (iii) one common example of each that occurs in Nigeria.
( b )
The Jos Plateau is dominated by Precambrian igneous rocks, whereas the Niger Delta basin consists mainly of sedimentary rocks. Explain how the dominant weathering and erosion processes differ between these two regions and discuss the implications for soil formation.
( c )
A construction project requires a durable building stone. Based on the rock cycle and the properties of rocks, recommend the most suitable type of rock from the Nigerian context, justify your choice, and outline two key considerations that must be addressed during its extraction and use.

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About This Question

This is Neco 2017 Geography Question 6. It is one of the essay questions from the 2017 Neco Geography examination.

The question covers Rocks, Rock cycle, Weathering, Soil formation .

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