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Cameroon GCE O-Level Geology Practice Questions - Cameroon General Certificate of Education Ordinary Level Geology (Code 0555) Exam

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About this Exam

Prepare with the Cameroon GCE O-Level Geology Practice Questions - Cameroon General Certificate of Education Ordinary Level Geology (Code 0555) Exam practice quiz. This question bank includes 100 questions covering mineral, rock, specimen, igneous, and rocks. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

Sample Questions

Question 1
Which of the following statements correctly distinguishes the continental crust from the oceanic crust in the Earth's internal structure?
Continental crust is thicker, less dense, and granitic in composition (sial), whereas oceanic crust is thinner, denser, and basaltic (sima).
Continental crust is thinner, denser, and basaltic, whereas oceanic crust is thicker, less dense, and granitic.
Both continental and oceanic crust have identical average thicknesses of 35 km and identical peridotite compositions.
Continental crust is composed exclusively of iron and nickel, while oceanic crust consists entirely of liquid silicate minerals.
Question 2
The Mohorovičić discontinuity (Moho) represents the boundary separating which two concentric layers of the Earth?
The outer liquid core and the inner solid core
The upper mantle and the lower mantle
The crust and the underlying mantle
The mantle and the outer core
Question 3
The Gutenberg discontinuity is located at a depth of approximately 2,900 km beneath the Earth's surface. What critical seismic evidence identifies this boundary?
P-waves are completely absorbed while S-waves accelerate to twice their crustal speed.
S-waves terminate abruptly because they cannot pass through liquid, while P-waves refract sharply and slow down.
Both P-waves and S-waves reflect backward completely, leaving the entire core undetectable.
Seismic waves travel unchanged in velocity and direction throughout this zone.
Question 4
Why is the Earth's inner core solid despite experiencing temperatures exceeding 5,000 °C, while the outer core is liquid?
The inner core is composed of pure silicon dioxide which has an extremely high boiling point.
Immense lithostatic pressure at the Earth's center raises the melting point of the iron-nickel alloy above the ambient temperature.
Continuous nuclear fission in the outer core keeps only the outer layer molten.
The inner core lacks radioactive elements and is therefore frozen at absolute zero.
Question 5
The asthenosphere is a mechanically weak layer located in the upper mantle. What is its primary geological role in global tectonics?
It generates Earth's geomagnetic dipole through rapid liquid convection.
It forms a rigid, unbroken shell that prevents any crustal deformation.
Its ductile, partially molten behavior allows the overlying rigid lithospheric plates to slide and move across it.
It acts as an impermeable barrier preventing volcanic magma from reaching the crust.

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Additional Information

Cameroon GCE O-Level Geology Practice Questions - Cameroon General Certificate of Education Ordinary Level Geology (Code 0555) Exam

This practice set contains 100 questions from the matching question bank and focuses on mineral, rock, specimen, igneous, and rocks. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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Frequently Asked Questions

This quiz contains a total of 100 practice questions carefully selected to test your knowledge on this subject.
Yes, you will have exactly 0 minutes to complete the exam. A countdown timer will be visible once you start.
Yes, you can retake this practice test as many times as you need. The questions and options may be randomized on subsequent attempts to ensure comprehensive learning.

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