AQA A-Level Geography 7037
Water and Carbon Cycles
Hot Desert Systems and LandscapesLandscape
Coastal Systems and LandscapesLandscape
Glacial Systems and LandscapesLandscape
HazardsHazards or ecosystems
Ecosystems Under StressHazards or ecosystems
Global Systems and Global Governance
Changing Places
Contemporary Urban EnvironmentsHuman option
Population and the EnvironmentHuman option
Resource SecurityHuman option
Resource Security
The Environmental Cost of Mineral Extraction
- 3 things to know
- Component 2
Overview
Recall questions on habitat destruction, landscape scarring, soil erosion and biodiversity loss from mineral extraction, acid mine drainage, heavy metal contamination, sedimentation and air pollution, and on the wider damage caused by distribution networks, tailings dam failure, railways, roads and shipping.
What you need to know
Answer each one before you reveal it.
What forms of air pollution result from mineral extraction?
Describe landscape scarring, soil erosion and biodiversity loss from mineral extraction.
Questions from this subtopic
Each one with the model answer underneath.
- 1
How does mineral extraction cause habitat destruction?
Model answer
Clearing vegetation, removing overburden, and constructing infrastructure eliminate ecosystems and displace wildlife.
- 2
What is meant by landscape scarring from mineral extraction?
Model answer
Permanent visual damage such as open pits, spoil heaps, and altered landforms that remain after mining ceases.
- 3
Explain how mineral extraction leads to soil erosion.
Model answer
Removal of vegetation and disturbance of land surfaces exposes soil to wind and water, accelerating erosion.
- 4
How does mineral extraction contribute to biodiversity loss?
Model answer
Habitat destruction, pollution, and fragmentation reduce species populations and can cause local extinctions.
- 5
What is acid mine drainage and why is it an environmental concern?
Model answer
It is acidic water formed when sulphide minerals are exposed to air and water; it contaminates streams and groundwater, harming aquatic life.
- 6
How does heavy metal contamination occur as a result of mineral extraction?
Model answer
Mining exposes and mobilises toxic metals (e.g. lead, arsenic, cadmium) which leach into water and soil, poisoning ecosystems.
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