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BY Abitur Geographie eA practice questions

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Question 1Maps, statistics, spatial analysis and fieldwork

On a map, the ratio 1:50,000 is an example of which type of scale?

  1. Verbal scale
  2. Graphic (bar) scale
  3. Nominal scale
  4. Representative fraction scale Correct answer.

Explanation

A representative fraction (RF) expresses scale as a ratio such as 1:50,000, meaning one unit on the map equals 50,000 of the same units on the ground. It is unitless, so it works for any measurement system. A verbal scale states the relationship in words, and a graphic scale uses a marked bar.

Question 2Physical geography and earth-surface processes

A deep ocean trench, frequent earthquakes, and a volcanic mountain arc are most characteristic of which plate boundary?

  1. Divergent boundary
  2. Transform boundary
  3. Hotspot far from any boundary
  4. Convergent (subduction) boundary Correct answer.

Explanation

At a convergent boundary where an oceanic plate subducts beneath another plate, a deep trench forms at the subduction line, and melting of the descending slab feeds a volcanic arc. The Andes and the Japanese island arc are examples.

Question 3Climate systems and environmental change

Which statement about the Equator's climate is most accurate?

  1. It experiences four distinct temperate seasons
  2. It is dominated by polar high pressure and aridity
  3. It has the largest annual temperature range on Earth
  4. It receives relatively consistent, high solar energy year-round, producing warm temperatures Correct answer.

Explanation

Near the Equator the Sun's rays strike at a high angle throughout the year, delivering consistently high insolation. This produces warm temperatures with small annual variation; in humid equatorial regions it also produces year-round rainfall and rainforest vegetation.

Question 4Rivers, coasts and catchment water accounting

In a developing river meander bend, where do lateral erosion and sediment deposition predominantly take place?

  1. Erosion on the inner convex bank; Deposition on the outer concave bank
  2. Erosion on the outer concave bank; Deposition on the inner convex bank (slip-off slope) Correct answer.
  3. Erosion across both banks equally; Deposition only on the river bed centre
  4. Deposition along the outer bank; Zero erosion anywhere along the bend

Explanation

In a meander, helicoidal water flow travels fastest on the outside of the bend (outer concave bank), creating lateral erosion and forming a steep river cliff. Water flows slowest on the inside of the bend (inner convex bank), reducing energy and depositing sand/gravel to form a gently sloping slip-off slope (point bar).

Question 5Population, cities, economic location and development

In the demographic transition model, a country with high birth rates and rapidly declining death rates, producing very high population growth, is in which stage?

  1. Stage 1
  2. Stage 4
  3. Stage 5
  4. Stage 2 Correct answer.

Explanation

Stage 2 of the demographic transition model features continued high birth rates but sharply falling death rates due to improvements in food supply, sanitation, and medicine. This gap produces the most rapid natural population increase.

Question 6Resources, environment and sustainability

Overdrawing groundwater from an aquifer faster than it recharges most directly leads to

  1. falling water tables, well failure, and possible land subsidence Correct answer.
  2. rising water tables and flooding
  3. increased rainfall in the region
  4. the formation of new mountains

Explanation

When groundwater is pumped faster than natural recharge, the water table drops, wells can run dry, pumping costs rise, and in some areas the land surface subsides. This is a major sustainability concern for aquifers like the Ogallala.

Question 7Regional comparison and territorial scales

A region develops specialty fruit farming because of unique climate, brand reputation, and transport to cities. This best illustrates:

  1. Using regional comparative advantages Correct answer.
  2. Ignoring all market demand
  3. A purely random land-use choice
  4. The absence of human-environment interaction

Explanation

Regional development often builds on local physical and human advantages. Climate, branding, and market access combine to create a competitive specialty sector.

Question 8Climate systems and environmental change

Why is the anthropogenic enhancement of the greenhouse effect radiatively more consequential than the extra heat released directly by fossil-fuel combustion?

  1. Fossil-fuel combustion adds greenhouse gases that trap outgoing longwave radiation continuously for decades to centuries, so each tonne of CO₂ multiplies radiative forcing far beyond the one-time heat of burning Correct answer.
  2. Burning fossil fuels cools the atmosphere, so only greenhouse gases can warm it
  3. Direct combustion heat is the sole climate driver; greenhouse gases play no role
  4. CO₂ reflects sunlight back to space more strongly than combustion heat warms the air

Explanation

Combustion heat is a one-off energy release that dissipates quickly. CO₂ and other greenhouse gases, by contrast, remain in the atmosphere for long timescales and continuously absorb and re-emit outgoing infrared radiation. The cumulative radiative forcing of the anthropogenic greenhouse effect therefore dominates the climate signal-an eA-level distinction between energy release and radiative forcing.

Question 9Climate systems and environmental change

In an eA analysis of Earth's radiation budget, what happens to outgoing longwave radiation when global surface temperature rises under fixed greenhouse-gas concentrations?

  1. Outgoing longwave emission increases roughly with the fourth power of temperature (Stefan–Boltzmann), providing a negative feedback that tends to restore energy balance Correct answer.
  2. Outgoing longwave radiation permanently falls to zero once temperature rises
  3. Outgoing longwave radiation becomes independent of temperature
  4. Only albedo can change; longwave emission is fixed by solar constant alone

Explanation

Warmer surfaces emit more infrared (σT⁴). Under fixed atmospheric opacity this increases outgoing longwave flux, cooling the climate system toward a new equilibrium-the Planck feedback. eA tasks often ask students to weigh this stabilizing feedback against positive feedbacks (ice-albedo, water vapour, permafrost carbon).

Question 10Climate systems and environmental change

How does the water-vapour feedback amplify anthropogenic warming?

  1. A warmer atmosphere holds more water vapour (Clausius–Clapeyron); because water vapour is itself a greenhouse gas, the initial CO₂-driven warming is reinforced Correct answer.
  2. Water vapour destroys all CO₂, so humidity cools the planet
  3. Increased humidity always increases albedo enough to cancel any greenhouse warming
  4. Water vapour only affects weather, never the planetary radiation budget

Explanation

Saturation vapour pressure rises exponentially with temperature. Anthropogenic warming therefore increases atmospheric water vapour, which traps additional longwave radiation and amplifies the original CO₂ forcing. eA materials expect this feedback to be distinguished from the direct CO₂ forcing and from cloud feedbacks, which remain more uncertain.

Question 11Climate systems and environmental change

Which statement best captures the ice–albedo feedback as a climate amplifier?

  1. Warming melts ice and snow, lowering surface albedo so more shortwave radiation is absorbed, which further warms the surface and accelerates melt Correct answer.
  2. Melting ice always increases albedo because open water is brighter than ice
  3. Ice melt only affects sea level; it has no radiative feedback
  4. Albedo feedback operates only on Venus, not Earth

Explanation

Ice and snow are highly reflective; open ocean and bare ground absorb more sunlight. Loss of ice therefore increases absorbed shortwave flux, reinforcing warming-especially potent in polar regions. eA Raumanalyse often links this feedback to Arctic amplification and cascading cryosphere risks.

Question 12Climate systems and environmental change

ENSO (El Niño–Southern Oscillation) is a key teleconnection. What defines an El Niño phase in the tropical Pacific?

  1. Anomalously warm eastern/central equatorial Pacific sea-surface temperatures with weakened trade winds and a shift of convection eastward, altering rainfall and circulation patterns globally Correct answer.
  2. Permanent cooling of the entire Atlantic Ocean only
  3. Strengthening of the northeast trades that cools the eastern Pacific below normal
  4. A purely stratospheric ozone anomaly with no ocean involvement

Explanation

El Niño features warm SST anomalies in the central/eastern equatorial Pacific, relaxed trades, and eastward-shifted convection. Teleconnections then modify mid-latitude storm tracks, monsoon rainfall and drought patterns worldwide. eA expects students to treat ENSO as an ocean–atmosphere coupled mode, not a local Pacific curiosity.

Question 13Climate systems and environmental change

Why do subtropical west-coast deserts (Atacama, Namib) remain hyper-arid even when some moisture exists offshore?

  1. Cold eastern-boundary currents stabilize the lower atmosphere and foster coastal fog; ascending convection is suppressed, so little rain falls despite humidity near the surface Correct answer.
  2. These coasts lie under permanent equatorial low pressure with daily Zenitalregen
  3. They receive the world's strongest monsoon onshore flow year-round
  4. Desert aridity there is caused solely by polar ice sheets blocking moisture

Explanation

Cold currents (Humboldt, Benguela) cool the marine boundary layer, creating inversion and fog. Moisture stays trapped near the surface while subsidence from the subtropical high further suppresses deep convection-producing extreme coastal aridity. eA answers should combine current, inversion and subtropical high rather than cite a single factor.

Question 14Climate systems and environmental change

Which process best explains why continental interiors at mid-latitudes often show greater annual temperature range than west coasts at the same latitude?

  1. Land has lower heat capacity and weaker maritime moderation; without persistent onshore moist westerlies, summers heat and winters cool more extremely Correct answer.
  2. Continents always sit closer to the sun than oceans
  3. West coasts receive no solar radiation in summer
  4. The Coriolis force cancels all seasonal temperature change over land

Explanation

Oceans store and release heat slowly; land responds quickly. Maritime west coasts under westerlies inherit oceanic moderation, while continental interiors experience strong seasonal extremes (Kontinentalklima). eA climate-diagram interpretation routinely hinges on this maritime–continental contrast.

Question 15Climate systems and environmental change

A climate diagram shows year-round high temperatures (~26–28 °C) and a double rainfall peak near the equinoxes with a short dry spell. Which ecozone/climate type is most consistent?

  1. Ever-wet / equatorial tropics near the ITCZ with Zenitalregen maxima following the zenithal sun Correct answer.
  2. Boreal climate with long frozen winters
  3. Mediterranean climate with dry summers and wet winters only
  4. Ice-cap climate with no liquid precipitation

Explanation

Near-equatorial stations often show two rainfall peaks as the ITCZ migrates with the zenithal sun, sometimes with a brief relative dry period. Temperatures stay high and nearly constant. eA requires linking diagram shape to circulation regime, not mere memorization of Köppen letters.

Question 16Climate systems and environmental change

What is meant by a climate tipping element such as the Greenland ice sheet or Amazon dieback in eA-level discourse?

  1. A large-scale Earth-system component that, beyond a threshold of forcing, may shift abruptly and often irreversibly on human timescales, with cascading global impacts Correct answer.
  2. Any weather forecast that changes daily
  3. A small local flood that drains within hours
  4. A reversible seasonal snow cover that always returns identically each year

Explanation

Tipping elements are subsystems that can cross critical thresholds into qualitatively different states-e.g., irreversible ice-sheet loss or forest–savanna transitions-with outsized global consequences. eA expects cautious language: thresholds are uncertain, but the risk framing (low-probability/high-impact) is central to climate-risk literacy.

Question 17Climate systems and environmental change

Why is Arctic amplification particularly relevant for European mid-latitude climate discussions?

  1. Faster Arctic warming can alter meridional temperature gradients and jet-stream behaviour, with debated but plausible links to persistent mid-latitude weather extremes Correct answer.
  2. The Arctic cools faster than Europe, so gradients always weaken irreversibly to zero
  3. Arctic warming has no teleconnection pathways to Europe by definition
  4. Europe's climate is controlled only by Antarctic sea ice

Explanation

The Arctic warms faster than the global mean (amplification via ice–albedo and other feedbacks). Reduced pole–equator gradients may influence jet-stream waviness and blocking-mechanisms still researched, but precisely the kind of uncertain, multi-causal link eA AFB III tasks ask students to discuss carefully.

Question 18Climate systems and environmental change

In the three-cell model, why does the subtropical high-pressure belt coincide with many of the world's hot deserts?

  1. Air that rose in the Hadley cell descends near 30°, warms adiabatically, and dries, suppressing cloud formation and precipitation Correct answer.
  2. Air rises vigorously at 30°, producing daily thunderstorms that evaporate all moisture before it can rain
  3. The Coriolis force creates permanent low pressure at 30° with continuous uplift
  4. Deserts form only because 30° latitudes receive no solar radiation

Explanation

Hadley-cell outflow aloft sinks in the subtropics. Adiabatic warming lowers relative humidity and inhibits convection-classic desert genesis. eA answers should connect cell structure, adiabatic process and precipitation suppression in one chain.

Question 19Climate systems and environmental change

Which statement correctly distinguishes weather from climate for Abitur materials analysis?

  1. Weather is the instantaneous/short-term state of the atmosphere; climate is the long-term statistical distribution of weather (typically ≥30-year normals) including extremes and variability Correct answer.
  2. Climate is tomorrow's forecast; weather is the 30-year average
  3. Weather and climate are identical synonyms in geography
  4. Climate excludes extremes by definition and only reports monthly means

Explanation

Climate characterization includes means, variability and extremes over long periods. Confusing a single extreme event with climate change-or denying that extremes are part of climate-is a frequent AFB I/II trap. eA tasks often ask whether a material shows weather snapshot or climate signal.

Question 20Climate systems and environmental change

Ocean heat uptake complicates surface-temperature interpretation. Why?

  1. A large share of excess anthropogenic heat enters the oceans, so surface air temperature understates total Earth-system energy gain and can pause or slow even while ocean heat content rises Correct answer.
  2. Oceans cannot store heat, so all anthropogenic heat stays in the air
  3. Ocean heat uptake instantly doubles surface warming each year
  4. Only lakes store heat; oceans are thermally inert

Explanation

Oceans absorb the majority of planetary energy imbalance. Surface temperature can therefore plateau temporarily while ocean heat content-a more complete energy metric-continues to rise. eA climate literacy treats ocean heat content as a key Earth-system indicator alongside surface temperature.

Question 21Climate systems and environmental change

Which combination best explains orographic enhancement of precipitation on windward slopes?

  1. Moist air is forced to rise, cools adiabatically, reaches saturation, and precipitates; the leeward side often lies in a rain shadow with descending, drying air Correct answer.
  2. Mountains always block all moisture so both sides are equally dry
  3. Windward slopes are dry because air sinks toward summits
  4. Precipitation falls only on leeward slopes where air rises spontaneously

Explanation

Forced ascent on the windward flank drives condensation; leeward descent warms and dries (Föhn / rain shadow). eA atlas tasks frequently ask students to predict precipitation contrasts across ranges from wind direction and relief alone.

Question 22Population, cities, economic location and development

In location theory for transnational corporations, what does 'new international division of labour' emphasize?

  1. Fragmentation of production across countries to exploit differences in labour costs, skills, regulation and market access within global value chains Correct answer.
  2. All production returning permanently to a single autarkic village
  3. Identical wages and regulations in every country, ending location choice
  4. The end of trade in intermediate goods

Explanation

TNCs slice value chains spatially. eA globalization tasks analyse who captures value and which regions are upgraded or locked into low-wage segments.

Question 23Population, cities, economic location and development

Scholz's model of fragmentierende Entwicklung is useful in eA exams mainly because it...

  1. Explains selective integration of places into global networks alongside exclusion of others-producing patchwork development rather than uniform catch-up Correct answer.
  2. Claims every periphery converges automatically to core living standards
  3. Denies that globalization has any spatial effects
  4. Applies only to medieval guild economies

Explanation

Fragmentation counters simplistic modernization narratives. Students should apply AND critically limit the model with material evidence-AFB III.

Question 24Population, cities, economic location and development

What characterizes a Global City beyond large population size?

  1. Concentration of command-and-control functions: TNC HQs, advanced producer services and financial markets coordinating global capital flows Correct answer.
  2. Any city above one million residents regardless of functions
  3. Exclusive specialization in subsistence agriculture only
  4. Complete disconnection from international networks

Explanation

Function over size: Sassen-type Global City criteria. Megacity ≠ Global City-an eA distinction that recurs in urban/globalization tasks.

Question 25Population, cities, economic location and development

Containerization and logistics hubs reshaped economic space by...

  1. Slashing unit transport costs and enabling spatially fragmented production, concentrating value in gateway ports/airports and inland freight nodes Correct answer.
  2. Making distance infinitely costly so all factories co-locate in one village
  3. Eliminating the need for ports
  4. Ending comparative advantage as a concept

Explanation

Transport revolutions reconfigure Standortgefüge. eA answers link technology, cost and spatial concentration of logistics functions.

Question 26Population, cities, economic location and development

Time–space compression refers to...

  1. The experiential shrinking of distance through faster transport and ICT, enabling near-real-time coordination of global economic and social networks Correct answer.
  2. The literal reduction of Earth's radius
  3. A law that travel always becomes slower each decade
  4. The prohibition of international phone calls

Explanation

Harvey's concept helps students interpret maps of flows and networks rather than static territories alone.

Question 27Population, cities, economic location and development

Fair-trade certification aims to address which market failure in global commodity chains?

  1. Unequal bargaining power and insufficient producer prices/social premiums in chains dominated by large buyers Correct answer.
  2. The physical impossibility of growing coffee
  3. Government bans on all exports from the Global South
  4. The absence of any consumer markets in the Global North

Explanation

Fair trade is a governance response inside globalization-useful for eA evaluation of market-based sustainability tools and their limits.

Question 28Population, cities, economic location and development

Digital platforms reorganize economic space by...

  1. Enabling remote coordination and market access while concentrating algorithmic control and data rents in a few global hubs Correct answer.
  2. Evenly distributing market power to every village equally
  3. Ending all forms of economic concentration
  4. Making physical logistics obsolete for food and raw materials

Explanation

Platform globalization combines diffusion of access with concentration of power-fragmentation in a new guise for eA analysis.

Question 29Resources, environment and sustainability

In tropical rainforest ecosystems, why is nutrient capital concentrated in living biomass rather than in deep humus-rich soils?

  1. Rapid decomposition and efficient plant uptake recycle nutrients in a tight cycle; heavy rainfall leaches soils, so standing biomass holds most nutrients Correct answer.
  2. Tropical soils always store more nutrients than temperate soils, leaving biomass nutrient-poor
  3. There is no decomposition in rainforests, so nutrients never cycle
  4. Nutrients arrive only from glaciers and never from the canopy

Explanation

Warm, moist conditions accelerate decomposition; mycorrhizal and root uptake quickly reclaim nutrients. Intense leaching leaves many soils (often latosols/ferralsols) chemically poor. Clearing forest therefore exports the nutrient capital-central to eA vulnerability arguments about rainforest conversion.

Question 30Resources, environment and sustainability

Slash-and-burn (Brandrodung) can be sustainable at low population density. Why does it become destructive under commercialization and rising pressure?

  1. Fallow periods shorten, soils cannot recover, yields fall, and expansion into primary forest accelerates-locking households into a vicious cycle of degradation and further clearing Correct answer.
  2. Longer fallows always accompany commercialization, restoring soil automatically
  3. Fire permanently fertilizes soils for centuries regardless of rotation length
  4. Commercialization eliminates all farming in the tropics

Explanation

Traditional shifting cultivation needs long fallows. Market incentives and population pressure compress rotations, depleting soils and driving frontier expansion. eA tasks expect causal chains: pressure → shorter fallow → degradation → new clearing-linked to sustainability options (agroforestry, tenure, markets).

Question 31Resources, environment and sustainability

Which statement best frames 'vulnerability' for tropical Mensch–Umwelt analysis at eA?

  1. Vulnerability is the predisposition to be adversely affected-shaped by exposure, sensitivity and adaptive capacity-not merely the physical hazard intensity Correct answer.
  2. Vulnerability equals only the magnitude of a hurricane's wind speed
  3. Vulnerability is identical to GDP per capita with no spatial dimension
  4. Only ecosystems can be vulnerable; societies cannot

Explanation

Risk research and sustainability geography treat vulnerability as a social–ecological property. Two places with similar hazards can differ sharply in outcomes because of poverty, governance, infrastructure and knowledge. This framing is essential for eA AFB III evaluation tasks.

Question 32Resources, environment and sustainability

Why can large-scale monoculture plantations (e.g., oil palm, soy) undermine tropical sustainability even when they raise export earnings?

  1. They often replace biodiverse ecosystems, simplify landscapes, increase erosion/chemical inputs, and create dependency on volatile global markets while concentrating land control Correct answer.
  2. Monocultures always increase biodiversity above rainforest levels
  3. Export earnings automatically restore primary forest within one season
  4. Plantations have no link to global commodity chains

Explanation

eA evaluation weighs economic gains against ecological loss, social displacement and market risk. Sustainability is multi-dimensional: a rising export curve does not by itself prove sustainable Raumentwicklung.

Question 33Resources, environment and sustainability

The Intertropical Convergence Zone (ITCZ) shifts seasonally. What does this imply for tropical wet–dry climates?

  1. Rainy and dry seasons follow the ITCZ's latitudinal migration; locations near the margins experience a pronounced dry season when the ITCZ moves away Correct answer.
  2. The ITCZ is fixed at the equator year-round with no seasonal effect
  3. Dry seasons occur only when the ITCZ sits directly overhead
  4. ITCZ migration affects only polar climates

Explanation

Seasonal ITCZ shift produces the classic wechselfeuchte Tropen: rain when the convergence zone is nearby, drought when subtropical highs dominate. eA climate-diagram tasks use this mechanism to explain savanna and monsoon margins.

Question 34Resources, environment and sustainability

Which strategy most directly addresses both livelihood security and rainforest conservation in frontier regions?

  1. Secure land tenure plus diversified agroforestry/NTFP income that keeps canopy cover while reducing pressure to clear new plots Correct answer.
  2. Unrestricted logging concessions with no community rights
  3. Forced relocation of all rural households to megacities as the only option
  4. Banning all agriculture without alternative income sources

Explanation

Sustainable solutions couple ecological protection with viable livelihoods. Tenure security and diversified tree-based incomes reduce the need for continuous frontier expansion. Pure bans without alternatives often fail-precisely the multi-criteria judgment eA expects.

Question 35Resources, environment and sustainability

Laterization / intense chemical weathering in the humid tropics produces which soil-management challenge?

  1. Nutrient-poor, often acidic soils with low cation-exchange capacity that lose fertility quickly under continuous cropping without careful management Correct answer.
  2. Naturally endless fertility that never requires inputs
  3. Permanently frozen active layers year-round
  4. Soils composed only of undecomposed peat under ice

Explanation

High temperature and rainfall drive deep weathering and leaching. Without biomass recycling or careful inputs, continuous cropping depletes fertility rapidly-another reason forest clearing is so consequential.

Question 36Resources, environment and sustainability

Coral reefs illustrate tropical vulnerability. Which coupled threat pathway is most accurate?

  1. Ocean warming causes bleaching; acidification impairs calcification; local pollution and overfishing reduce resilience-compounding global and local stressors Correct answer.
  2. Reefs benefit uniformly from warmer, more acidic water
  3. Only polar ice melt affects reefs; local factors never matter
  4. Reefs are abiotic rock platforms with no biological sensitivity

Explanation

Bleaching, acidification and local stressors interact. eA risk language emphasizes multiple stressors and the limits of local adaptation when global forcing intensifies-ideal AFB III material.

Question 37Resources, environment and sustainability

Why is 'development' in tropical regions often discussed as fragmentierend rather than uniformly converging?

  1. Globalization can integrate some spaces into high-value networks while marginalizing adjacent regions-producing sharp intra-national and intra-regional contrasts Correct answer.
  2. Every tropical district experiences identical GDP growth by definition
  3. Fragmentation means all trade stops permanently worldwide
  4. Development geography forbids discussing inequality

Explanation

Scholz's fragmentierende Entwicklung and related approaches stress selective integration: boom corridors beside excluded peripheries. eA globalization tasks reward this spatially differentiated reading over simple North–South binaries.

Question 38Resources, environment and sustainability

Mangrove coasts protect tropical shorelines. What happens when mangroves are cleared for shrimp ponds or tourism?

  1. Wave attenuation and nursery habitat decline, erosion and storm-surge risk rise, and livelihood portfolios often become less resilient despite short-term cash income Correct answer.
  2. Storm protection automatically improves after clearing
  3. Fish nurseries expand because ponds replace mangroves perfectly
  4. Clearing has only aesthetic effects with no hazard implications

Explanation

Mangroves provide regulating and supporting services. Conversion trades long-term protection for short-term profit-classic sustainability tension for eA evaluation.

Question 39Physical geography and earth-surface processes

In geographische Risikoforschung, risk is commonly conceptualized as which product of factors?

  1. Hazard × exposure × vulnerability (sometimes including coping/adaptive capacity as reducing vulnerability) Correct answer.
  2. Hazard intensity alone, ignoring people and assets
  3. GDP growth rate multiplied by tourist arrivals only
  4. Distance from the equator with no social factors

Explanation

The risk triad is foundational eA Lernbereich 7 literacy: identical hazards yield different risks where exposure and vulnerability differ. AFB III tasks demand this separation.

Question 40Physical geography and earth-surface processes

Why can building dykes or avalanche galleries create a 'levee effect' / Risikoparadox?

  1. Perceived safety encourages settlement and asset growth in hazardous zones, raising potential losses when design events are exceeded Correct answer.
  2. Protection measures always eliminate residual risk completely forever
  3. People always abandon protected areas immediately
  4. Galleries increase avalanche frequency in the source zone by definition

Explanation

Protection can raise exposure through behavioural adaptation-the Risikoparadox. eA risk governance answers must discuss residual risk and land-use control alongside engineering.

Question 41Physical geography and earth-surface processes

Debris flows (Muren) in Alpine valleys are most likely when which conditions coincide?

  1. Steep debris-rich slopes, intense rainfall or rapid snowmelt, and channelized topography that mobilizes saturated material Correct answer.
  2. Flat plains with no relief and prolonged drought only
  3. Permanent frost with zero liquid water
  4. Only strong winds without water or loose sediment

Explanation

Muren require relief, water and mobilizable sediment. Climate change may alter rainfall intensity and permafrost cohesion-linking mountains and risk research.

Question 42Physical geography and earth-surface processes

Plate-boundary earthquakes illustrate hazard; unequal death tolls illustrate what?

  1. Differences in exposure and vulnerability-building standards, early warning, governance and poverty-more than differences in magnitude alone Correct answer.
  2. That magnitude is the only determinant of fatalities worldwide
  3. That earthquakes kill equally in all societies by physical law
  4. That only coastal cities can experience earthquake losses

Explanation

Same Mw, different outcomes: the classic risk-research teaching case. eA insists on social dimensions of catastrophe.

Question 43Physical geography and earth-surface processes

What is a multi-hazard cascade in mountain regions?

  1. One triggering event sets off secondary processes-e.g., earthquake → landslide → dammed lake → outburst flood-compounding losses across systems Correct answer.
  2. Two unrelated sunny days in a row
  3. A single hazard that never interacts with others
  4. Only volcanic ash without any secondary effects

Explanation

Cascades are central to modern Risikoforschung and eA scenario thinking: impacts propagate through coupled natural and infrastructure systems.

Question 44Physical geography and earth-surface processes

Endogenic vs exogenic processes in high mountains: which pairing is correct?

  1. Endogenic: tectonics/volcanism building relief; exogenic: weathering, erosion, mass movements wearing it down-together shaping hazard patterns Correct answer.
  2. Endogenic means only wind erosion; exogenic means only mantle convection
  3. Exogenic forces build ocean crust at mid-ocean ridges
  4. Endogenic processes are limited to cloud formation

Explanation

Relief production vs denudation frames Alpine geomorphology and hazard predisposition. eA expects correct process assignment before evaluating use and protection.

Question 45Physical geography and earth-surface processes

Tourism intensification in high mountains can raise risk by which mechanism?

  1. Expanding exposure (hotels, traffic, ski infrastructure) into hazard-prone slopes while seasonal peaks strain evacuation and rescue capacity Correct answer.
  2. Automatically eliminating all avalanches through visitor numbers
  3. Reducing exposure because tourists never enter hazardous terrain
  4. Making slope stability independent of land use

Explanation

Use changes exposure and sometimes susceptibility (deforestation, slope cutting). eA mountain tasks couple Wirtschaftliche Nutzung with Vulnerabilität.

Question 46Physical geography and earth-surface processes

Why is early warning only partially effective without social preparedness?

  1. Warnings reduce losses only if people receive, understand, trust and can act on them-governance and capacity mediate warning value Correct answer.
  2. Warnings always save everyone regardless of communication or resources
  3. Preparedness is irrelevant if a siren exists
  4. Early warning increases vulnerability by definition

Explanation

Risk reduction is socio-technical. eA AFB III answers critique techno-fixes that ignore last-mile communication and mobility constraints.

Question 47Physical geography and earth-surface processes

Spatial planning as risk reduction means primarily what?

  1. Keeping critical exposure out of high-hazard zones through zoning, building bans/restrictions and relocation incentives-reducing risk without needing to eliminate the hazard Correct answer.
  2. Abolishing all maps so hazards cannot be seen
  3. Mandating densest housing on known debris-flow cones
  4. Replacing land-use law with insurance alone

Explanation

Avoidance is often the most effective risk strategy. Insurance and engineering complement but do not replace spatial prevention-key eA governance insight.

Question 48Resources, environment and sustainability

Static resource lifetime (statische Reichweite) is calculated how, and what is its main limitation?

  1. Reserves divided by current annual consumption; it ignores price-driven reserve growth, substitution, recycling and demand change-so it is a snapshot, not a prophecy Correct answer.
  2. Consumption divided by reserves, which perfectly predicts the exhaustion year
  3. Only the political speeches of energy ministers
  4. Infinite by definition for all minerals

Explanation

Reichweite literacy is essential eA resources content: understand the ratio AND critique its static assumptions.

Question 49Resources, environment and sustainability

Germany's Energiewende spatial challenge includes which core tension?

  1. Renewable potentials (wind, sun) are unevenly distributed, requiring grid expansion, storage and acceptance-while coal regions face structural change Correct answer.
  2. Renewables require no land, grids or storage anywhere
  3. All German energy is already 100% renewable with zero transmission need
  4. Coal regions automatically gain from shutting plants with no policy support

Explanation

Energy transition is a Raumproblem: generation geography, grids, storage and just transition. eA links resources to regional development.

Question 50Population, cities, economic location and development

Demographic dividend occurs when...

  1. A bulge of working-age adults coincides with falling dependency ratios-offering growth potential IF education, jobs and institutions absorb the cohort Correct answer.
  2. Ageing automatically raises GDP without employment policy
  3. Youth bulges always cause growth regardless of job markets
  4. Dependency ratios rising forever define the dividend

Explanation

The dividend is conditional-eA must state the IF (human capital, employment). Otherwise youth bulges can become social risk.