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52+ Free Exame Nacional de Geografia — 12.ª Classe Practice Questions

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2026 Statistics

Key Facts: Exame Nacional de Geografia — 12.ª Classe Exam

52

English-language MCQ study adaptations in this bank

OpenExamPrep reviewed bank

15 top-level items (one published item has two subparts)

Top-level structure of the published 2026 official paper

INADE published paper

120 + 30

Official minutes plus tolerance

Decreto Executivo 81/26

0–200 → 0–20

Official scoring conversion

Decreto Executivo 81/26

Official paper: 15 top-level items (one published item has two subparts), 120 minutes plus 30 minutes tolerance, scored 0–200 and converted to 0–20. Practice bank: 52 English-language MCQ study adaptations aligned to the published scope, not an official format simulation.

Sample Exame Nacional de Geografia — 12.ª Classe Practice Questions

Try these sample questions to test your Exame Nacional de Geografia — 12.ª Classe exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 52+ question experience with AI tutoring.

1Which seismic discontinuity marks the boundary between the Earth's crust and the upper mantle?
A.Mohorovičić discontinuity
B.Gutenberg discontinuity
C.Lehmann discontinuity
D.Conrad discontinuity
Explanation: The Mohorovičić discontinuity (often termed the Moho) separates the Earth's crust from the underlying upper mantle, characterized by an abrupt increase in seismic P-wave velocity from roughly 6 km/s to over 8 km/s. This transition occurs at an average depth of 30–50 km beneath continents and 5–10 km beneath oceanic basins.
2The East African Rift System (EARS) represents which type of tectonic plate boundary and geodynamic process?
A.A convergent boundary where oceanic lithosphere is subducting beneath continental crust
B.A divergent boundary where the African Plate is splitting into the Nubian and Somali sub-plates
C.A transform fault boundary where two continental masses slide past each other horizontally
D.A passive continental margin undergoing subsidence without active volcanic or extensional stresses
Explanation: The East African Rift System is a continental divergent boundary where tensional tectonic forces and mantle upwelling are rifting the African Plate into two distinct tectonic units: the Nubian Plate to the west and the Somali Plate to the east. Over geological timescales, continued rifting will lead to the formation of a new ocean basin.
3At an ocean-ocean convergent plate boundary, what geological feature is typically formed alongside a deep oceanic trench?
A.Folded mountain belt with continental batholiths
B.Mid-oceanic ridge with hydrothermal vents
C.Volcanic island arc
D.Continental rift valley with alkaline lakes
Explanation: When two oceanic plates converge, the older, denser oceanic lithosphere subducts beneath the younger plate into the asthenosphere. Dehydration melting of the mantle wedge generates magma that rises to form a curved chain of volcanic islands, known as a volcanic island arc (such as the Mariana or Aleutian Islands), alongside an oceanic trench.
4Which ancient supercontinental landmass split during the Mesozoic Era to form Africa, South America, Australia, Antarctica, and the Indian subcontinent?
A.Laurasia
B.Rodinia
C.Columbia
D.Gondwana
Explanation: Pangaea initially fractured into two giant landmasses: Laurasia in the northern hemisphere and Gondwana in the southern hemisphere. Gondwana subsequently fragmented during the Jurassic and Cretaceous periods, separating Africa from South America and creating the South Atlantic Ocean basin.
5Why do seismic S-waves (secondary/shear waves) fail to propagate through the Earth's outer core?
A.S-waves are transverse shear waves that cannot propagate through liquid media
B.S-waves are longitudinal compressional waves that require empty vacuum to travel
C.The outer core has a temperature below absolute zero, which completely freezes wave velocity
D.The magnetic field of the core reflects all mechanical energy back to the mantle
Explanation: S-waves are transverse (shear) elastic waves where particle motion is perpendicular to wave propagation. Because liquids possess no shear modulus (they cannot sustain shear stress or resist deformation), S-waves cannot travel through the molten iron-nickel outer core, producing an S-wave shadow zone beyond 103° from an earthquake epicenter.
6Which geological feature is characterized by intraplate basaltic volcanism produced by a stationary mantle plume rising from the core-mantle boundary?
A.Island arc collision zone
B.Hotspot (ponto quente)
C.Transform fault scarp
D.Subduction trench
Explanation: A hotspot (ponto quente) is an area of persistent volcanic activity fueled by an unusually hot, buoyant upwelling of rock originating deep within the mantle (a mantle plume). As tectonic plates move over stationary hotspots, linear chains of volcanic structures of progressive ages are created (such as the Hawaiian-Emperor seamount chain).
7In warm, humid tropical climates with abundant rainfall, which type of weathering dominates the alteration and breakdown of silicate bedrock?
A.Frost wedging (gelifracção)
B.Thermal exfoliation caused by extreme diurnal temperature variations
C.Chemical weathering through hydrolysis, hydration, and oxidation
D.Salt crystal growth (haloclasty)
Explanation: In humid tropical environments, high temperatures and abundant moisture accelerate chemical reactions such as hydrolysis (breakdown of feldspars into clay minerals), oxidation (forming iron oxides), and leaching. This deep chemical weathering produces thick layers of nutrient-depleted, reddish-yellow saprolite and ferralitic soils.
8What landform is produced when a river meander is cut off during a flood, leaving a crescent-shaped body of standing water?
A.Alluvial fan
B.Fluvial terrace
C.Deltaic distributary
D.Oxbow lake (braço morto / meandro abandonado)
Explanation: An oxbow lake (braço morto ou lago em ferradura) is formed in the mature, low-gradient floodplain of a river when lateral erosion breaches the narrow neck of a meander loop. The river adopts a straighter course, and sediment deposition seals off the former bend into an isolated, crescent-shaped lake.
9Which underlying lithology and chemical process are necessary for the development of karst topography featuring dolines, caves, and sinking streams?
A.Carbonate rocks (such as limestone and dolomite) dissolved by carbonic acid in groundwater
B.Insoluble quartzites eroded by high-velocity wind abrasion
C.Basaltic lava flows subjected to rapid thermal contraction and columnar jointing
D.Granitic plutons exposed by mechanical spheroidal weathering
Explanation: Karst topography develops in soluble rocks, primarily limestone (CaCO3) and dolomite. Rainwater absorbs atmospheric and soil carbon dioxide to form weak carbonic acid (H2CO3), which dissolves calcium carbonate into soluble calcium bicarbonate, creating subsurface caverns, sinkholes (dolines), poljes, and subterranean drainage systems.
10Which type of sand dune is crescent-shaped with its horns pointing downwind in areas with constant wind direction and limited sand supply?
A.Seif / Longitudinal dune
B.Barchan dune (barcana)
C.Star dune (duna em estrela)
D.Parabolic dune
Explanation: Barchan dunes (barcanas) are crescentic dunes that form on firm ground under unidirectional wind regimes where sand supply is limited. The convex slip face faces downwind, and the two tapering horns point in the direction of prevailing wind transport as the dune migrates.

About the Exame Nacional de Geografia — 12.ª Classe Exam

This is the INADE 12th-grade national examination in Geography (Geografia), code 124, for eligible students following the Angolan curriculum. The official assessment is an in-person written paper combining selection, data or map interpretation, and constructed-response items and uses Portuguese. This page provides an English-language MCQ study adaptation only; official names and target-language material integral to language skills are preserved.

Assessment

INADE administers the 12th-grade Geography (Geografia) paper (code 124) under the 2025/2026 national-exam regulation. The official Information-Prova and published paper define the scope reflected below. The assessment is an in-person written paper combining selection, data or map interpretation, and constructed-response items; its official language setting is Portuguese.

Time Limit

120 minutes (+30 minutes tolerance)

Passing Score

The paper is scored from 0 to 200 points and converted to the 0–20 scale. Decreto Executivo 81/26 assigns weighting and progression rules to separate learning-assessment regulations and does not publish a standalone 10/20 pass mark for this paper.

Exam Fee

No separate candidate exam fee is published in the official 2025/2026 INADE national-exam materials. (Instituto Nacional de Avaliação e de Desenvolvimento da Educação (INADE), Ministério da Educação (MED), Angola)

Exame Nacional de Geografia — 12.ª Classe Exam Content Outline

Published scope

Earth as a global environment

Earth systems, climate, relief, water, environmental interaction, and global physical processes.

Published scope

European spaces and contrasts

European relief, climates, river and transport corridors, population, settlement, and regional contrasts.

Published scope

Population and demographic change

Population structure, mobility, demographic transition, ageing, and spatial distribution.

Published scope

Agriculture and development

Agricultural systems, productivity, markets, food security, and environmental management.

How to Pass the Exame Nacional de Geografia — 12.ª Classe Exam

What You Need to Know

  • Passing score: The paper is scored from 0 to 200 points and converted to the 0–20 scale. Decreto Executivo 81/26 assigns weighting and progression rules to separate learning-assessment regulations and does not publish a standalone 10/20 pass mark for this paper.
  • Assessment: INADE administers the 12th-grade Geography (Geografia) paper (code 124) under the 2025/2026 national-exam regulation. The official Information-Prova and published paper define the scope reflected below. The assessment is an in-person written paper combining selection, data or map interpretation, and constructed-response items; its official language setting is Portuguese.
  • Time limit: 120 minutes (+30 minutes tolerance)
  • Exam fee: No separate candidate exam fee is published in the official 2025/2026 INADE national-exam materials.

Keys to Passing

  • Work through all 52 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

Exame Nacional de Geografia — 12.ª Classe Study Tips from Top Performers

1Use the official Information-Prova to organize review around: Earth as a global environment; European spaces and contrasts; Population and demographic change; Agriculture and development.
2Work through the published official paper and its classification criteria to practise the real response types and required working.
3Use this MCQ bank for concept checks, then practise explanations, calculations, source analysis, or extended writing in the official assessment language.

Frequently Asked Questions

What is the official format?

INADE publishes 15 top-level items (one published item has two subparts) for the 2026 paper. It is an in-person written paper combining selection, data or map interpretation, and constructed-response items, not a 100-question MCQ test.

How long is the official paper?

The regulation sets 120 minutes plus 30 minutes tolerance for 12th-grade national papers.

How is it scored?

The official paper totals 200 raw points, converted to the 0–20 scale. The current exam regulation refers weighting and progression to separate learning-assessment rules.

Who is eligible?

Eligible 12th-grade students following the Angolan curriculum must be registered in PGDEN and meet the admission conditions in Decreto Executivo 81/26, including the attendance and discipline requirements.

Does this bank reproduce the official exam?

No. These 52 questions are English-language MCQ study adaptations. They are not an official translation, do not reproduce the official item mix, and do not substitute for written-response practice.