Lesson 3.1.2.4
3.1.2.4 Desertification Quiz: AQA Geography, Unit 1
20 questions
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Lesson 3.1.2.4, Desertification: 20 multiple choice questions for the AQA Geography (7037), Unit 1: Physical geography, written with Revision Ninja.
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The 20 questions
-
What term describes land degradation in drylands resulting from climate variability and human activities?
- Urbanisation
- Deforestation
- Desertification
- Salinisation
-
Which agricultural practice directly causes desertification by removing protective vegetation cover?
- Crop rotation
- Overgrazing
- Drip irrigation
- Contour ploughing
-
Which natural climatic phenomenon contributes to desertification by significantly reducing soil moisture levels?
- Prolonged drought
- Thermal expansion
- Flash flooding
- Solar flare
-
What direct ecological impact occurs when dryland soil loses water and key nutrients?
- Eutrophication
- Crustal deformation
- Isostatic rebound
- Biodiversity loss
-
How has the global extent of hot deserts behaved over the past 10,000 years?
- Expanded continuously
- Shrunk continuously
- Remained completely constant
- Fluctuated continuously
-
Which environmental zone is physically most vulnerable to the process of desertification?
- Polar tundra
- Semi-arid drylands
- Temperate deciduous forests
- Tropical rainforests
-
Which sustainable local technique helps mitigate desertification by stabilising fragile topsoil?
- Groundwater depletion
- Open-cast mining
- Afforestation
- Deep ploughing
-
What major socio-economic issue affects local human populations when agricultural drylands undergo desertification?
- Food insecurity
- Rapid industrialisation
- Urban sprawl
- Coastal flooding
-
Desertification is primarily caused by the interaction of climate change with which general factor?
- Human activity
- Volcanic eruptions
- Oceanic currents
- Tectonic uplift
-
Which predicted future climate trend will most increase desertification risk in drylands?
- Decreased precipitation
- Lower temperatures
- Increased snowfall
- Rising sea levels
-
What process makes desertification function as a positive feedback loop?
- Increased plant growth
- Higher annual rainfall
- Accelerated soil erosion
- Rapid soil formation
-
Which local adaptation strategy builds community resilience against growing desertification risks?
- Intensive monoculture
- Clear-felling forests
- Water harvesting
- Industrial urban expansion
-
Which geographical index measures climate dryness to help identify areas at risk of desertification?
- Aridity index
- Body mass index
- Gini coefficient
- Human development index
-
Why is severe desertification extremely difficult to reverse ecologically?
- Excessive soil nutrients
- Fast plant succession
- Slow soil formation
- High water infiltration
-
Comparing adjacent dryland areas with identical rainfall reveals desertification is driven by what factor?
- Continental drift
- Solar intensity
- Land management
- Atmospheric pressure
-
What type of plants become dominant in ecosystems affected by desertification?
- Xerophytes
- Hydrophytes
- Epiphytes
- Mesophytes
-
How does climate change directly increase the risk of desertification in drylands?
- Increased glaciation
- Higher humidity
- Frequent droughts
- Frequent flooding
-
What strategy is used to reduce wind erosion in areas facing desertification?
- Contour ploughing
- Check dams
- Shelterbelts
- Terracing
-
What is the main direct effect of desertification on agricultural productivity?
- Lower crop disease
- Increased soil fertility
- Reduced crop yields
- Expanded arable land
-
Why are rural dryland populations particularly vulnerable to desertification?
- High industrial employment
- Subsistence farming reliance
- Diversified economy
- Widespread urbanisation
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