Key term
Edexcel GCSE Geography A 1GA0
Changing Cities
Topic overviewGlobal urbanisation trends and ratesThe UK’s urban population and why urbanisation varies by regionThe chosen UK city: site, situation, connectivity and structureUrbanisation, suburbanisation and migration in the chosen UK cityPopulation change and deindustrialisation in the chosen UK cityInequality and changes in retailing in the chosen UK cityMaking the chosen UK city more sustainableThe chosen developing or emerging city: site, situation and structurePopulation growth and migration in the chosen developing or emerging cityInequality and quality of life in the chosen developing or emerging cityRapid urbanisation: challenges, and bottom-up and top-down responsesGovernment policy and quality of life in the chosen city
Coastal Landscapes and ProcessesLandscape option
Ecosystems, Biodiversity and Management
Topic overviewThe world’s large-scale ecosystems and what controls their distributionThe biosphere as a resource, and its commercial exploitationUK terrestrial and marine ecosystemsTropical rainforest characteristics and the nutrient cycleRainforest biodiversity and plant and animal adaptationsRainforest goods and services, and the causes of deforestationSustainable management of a named rainforestDeciduous woodland characteristics and the nutrient cycleWoodland biodiversity and plant and animal adaptationsWoodland goods and services, and the causes of deforestationSustainable management of a named deciduous woodland
Energy Resource ManagementResource option
Geographical Investigations – Fieldwork
Topic overviewRiver fieldwork: enquiry questions, methods and secondary dataCoastal fieldwork: enquiry questions, methods and secondary dataUrban fieldwork: enquiry questions and methodsUrban fieldwork: secondary data sourcesRural fieldwork: enquiry questions and methodsRural fieldwork: secondary data sourcesThe enquiry process: asking questions and choosing methodsThe enquiry process: presenting, analysing and concludingThe enquiry process: evaluating fieldwork
Geographical Investigations − UK Challenges
Geographical Skills
Topic overviewAtlas and map skills: distributions, patterns and sketch mapsDescribing the site, situation and shape of settlementsInterpreting diagrams, sketches and photographsUsing online census sourcesHypotheses, sampling and risk assessmentCollecting, recording and presenting dataWriting about findings and building an argument
Glaciated Upland Landscapes and ProcessesLandscape option
Topic overviewGlacial processes and the processes at work on relict landscapes todayPast climate and present UK weather in glaciated uplandsGlacial landforms of erosion and depositionCrag and tail, and drumlinsHuman activity and development in glaciated uplandsA named distinctive glaciated upland landscape in the UK
Global Development
Topic overviewDefining and measuring developmentThe global pattern of development and why it is unevenThe consequences of uneven development for quality of lifeStrategies to reduce uneven development: aid, top-down and bottom-upThe chosen country: location, context and internal unevennessEconomic change, trade, aid and investment in the chosen countryPopulation and social change in the chosen countryGeopolitics and technology in the chosen countryThe impacts of rapid development and how they are managed
Mathematics and Statistics Skills
Topic overviewCartographic skills: contours, transects, scale and distanceUsing GIS and geo-spatial dataChoosing, constructing and interpreting graphs and chartsNumerical skills: number, scale, proportion and ratioDrawing conclusions from numerical dataStatistical skills: averages, spread, percentages and correlationSpotting weaknesses in how data is presented
Resource Management
River Landscapes and ProcessesLandscape option
The Changing Landscapes of the UK
Water Resource ManagementResource option
Topic overviewThe global distribution of fresh water, and water surplus and deficitChanging water supply and demandHow water use differs between countriesWater supply problems in the UK and in developing countriesStakeholder attitudes to water, and desalinationSustainable management of water resources
Weather Hazards and Climate Change
Topic overviewGlobal atmospheric circulation and the transfer of heatNatural climate change and the evidence for itThe enhanced greenhouse effect and the effects of climate changeThe climate of the UK and how it variesHow tropical cyclones form, and where they occurWhy tropical cyclones are hazardous, and their impactsResponses to tropical cyclonesThe causes of drought and why some places are more vulnerableThe impacts of drought and responses to it
Ecosystems, Biodiversity and Management
The biosphere as a resource, and its commercial exploitation
- 3 things to know
- Paper 1
Overview
The biosphere as a source of food, medicine, building materials, fuel and water, subsistence against commercial use, the damage done by mineral extraction and rising demand, and how graphs of projected world population compare with the resources ecosystems can supply.
What you need to know
Answer each one before you reveal it.
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Key term
Why is the biosphere an important source of medicine?
Key term
Name building materials that come straight from the biosphere.
Questions from this subtopic
Each one with the model answer underneath.
- 1
What is meant by the biosphere?
Model answer
The zone of the planet in which living things exist, taking in the land, the water and the lower atmosphere they occupy.
- 2
How does the biosphere supply people with food?
Model answer
It provides wild fish, fruits, nuts and game directly, and it maintains the soils and pollinators on which farmed crops and grazing depend.
- 3
Why is the biosphere an important source of medicine?
Model answer
Many drugs are derived from wild plants and fungi, such as quinine from cinchona bark, and most species have never been screened for new ones.
- 4
Name building materials that come straight from the biosphere.
Model answer
Timber for frames, floors and roofing, and natural fibres such as thatch, reeds and bamboo.
- 5
What fuels do people take from the biosphere?
Model answer
Fuelwood and charcoal for cooking and heating, animal dung and crop residues, and biofuels such as ethanol grown from crops.
- 6
What is the difference between subsistence and commercial use of the biosphere?
Model answer
Subsistence use takes small amounts to meet a household's own needs, while commercial use extracts on a large scale in order to sell for profit.
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