Lesson 5.4
5.4 Deficits within the water cycle: drought Quiz: Pearson Edexcel Geography, Unit 7
20 questions
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Lesson 5.4, Deficits within the water cycle: drought: 20 multiple choice questions for the Pearson Edexcel Geography (9GE0), Unit 7: Topic 5: The Water Cycle and Water Insecurity, written with Revision Ninja.
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The 20 questions
-
Which type of drought is defined purely by a shortfall in regional precipitation?
- Agricultural drought
- Hydrological drought
- Socioeconomic drought
- Meteorological drought
-
Which type of drought is characterised by low river flows and falling groundwater levels?
- Hydrological drought
- Flash flood
- Meteorological drought
- Snowmelt flood
-
Which ocean-atmosphere climate cycle drives major naturally occurring global drought events?
- Hadley cell oscillation
- Solar cycle
- Milankovitch cycle
- ENSO cycle
-
What does the abbreviation ENSO stand for in meteorological studies?
- Eastern North Storm Origin
- Equatorial Northern Surface Oscillation
- El Niño Southern Oscillation
- Environmental National System Output
-
Which human activity increases drought risk by depleting aquifers and surface water stores?
- Over-abstraction
- Deforestation
- Afforestation
- Eutrophication
-
Which hydrological hazard do both the Sahel and Australia exemplify in the specification?
- Glacial outburst
- Coastal flooding
- Severe drought
- River avulsion
-
Which two ecosystem types are specifically named in the specification as vulnerable to drought stress?
- Savannas and mangroves
- Grasslands and tundra
- Wetlands and forests
- Heathlands and estuaries
-
What term describes the ability of an ecosystem to recover after severe drought disturbance?
- Threshold
- Resilience
- Feedback
- Fragility
-
Which water stores buffer short precipitation deficits, delaying the onset of hydrological drought?
- Atmospheric moisture
- Surface runoff
- Groundwater and reservoirs
- Interception stores
-
How does over-abstracting groundwater increase drought risk in a river catchment?
- Increases surface interception
- Reduces baseflow
- Promotes soil saturation
- Elevates water table
-
Which indicator best confirms that a catchment has entered a hydrological drought?
- Decreased soil compaction
- Elevated air temperature
- Reduced river discharge
- Increased atmospheric humidity
-
What short-term atmospheric condition directly causes a meteorological drought?
- Run-off deficit
- Transpiration deficit
- Precipitation deficit
- Evaporation deficit
-
Which human action directly increases the risk of drought in aquifers?
- Afforestation
- Urban drainage
- Over-abstraction
- Cloud seeding
-
What is the main human cause of depleted store levels in groundwater aquifers?
- River damming
- Urban canalisation
- Groundwater over-abstraction
- Surface run-off
-
Which specific ecosystem is most directly threatened by falling water tables during droughts?
- Wetlands
- Tundras
- Taigas
- Deserts
-
Which impact describes tree dieback and reduced canopy density caused by drought?
- Eutrophication
- Forest stress
- Soil salinisation
- Wetland expansion
-
Which type of drought is characterised by reduced streamflow and low reservoir levels?
- Socio-economic drought
- Meteorological drought
- Agricultural drought
- Hydrological drought
-
A region receives 400 mm of rain against a normal 600 mm. What is the percentage deficit?
- About 50%
- About 40%
- About 67%
- About 33%
-
A wetland loses 35% of its area during a drought. If it covered 40 hectares, how much area remains?
- 35 hectares
- 26 hectares
- 14 hectares
- 5 hectares
-
Which natural climate cycle causes cyclical droughts in regions like Australia?
- ENSO cycle
- Milankovitch cycle
- Solar cycle
- North Atlantic Oscillation
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