Key term
OCR GCSE Geography A J383
Ecosystems of the Planet
Topic overviewAbiotic and biotic components, and how ecosystems interactThe world’s biomes: where they are and what they are likeWhere the tropical rainforests are, and what they are likeWhere the coral reefs are, and what they are likeRainforest processes and nutrient cyclingTwo threatened ecosystems: a rainforest and a coral reef
Environmental Threats to Our Planet
Topic overviewClimate change through the Quaternary, and since 1000ADThe evidence for climate changeNatural causes of climate change, and the enhanced greenhouse effectThe consequences of climate changeThe world’s climatic regions and global atmospheric circulationHow global circulation produces extreme weatherTropical storms: causes, distribution and frequencyA drought caused by El Niño or La Niña
Fieldwork Skills
Geographical Skills
Topic overviewConstructing maps, and reading cross-sections and transectsCoordinates, scale, distance and reading information from a mapGradient, contours, spot heights and GISChoosing, constructing and presenting graphs and chartsReading and interpreting the main graph and chart typesNumber, area, scale and the relationships between unitsProportion and ratio, and measures of central tendency and spreadPercentages and percentiles, and designing data collection sheetsReading tables, and describing relationships in bivariate dataTrend lines and lines of best fitPredicting from data, and spotting weak statistical presentationDrawing and justifying conclusions from dataInterpreting images and written sources, and recognising biasJudging the limits of maps, graphs, statistics and images
Landscapes of the UK
People of the Planet
Topic overviewDefining and measuring developmentThe global pattern of development: ACs, EDCs and LIDCsWhy development is uneven, and the role of aidA developing or emerging country: its context and economyRostow’s model and the country’s path of developmentCities, megacities and world citiesWhy urban growth rates differ around the worldRapid urbanisation in poorer countries: causes and effectsA major city in a poorer or emerging country
People of the UK
Topic overviewThe UK’s trade, media and cultural links with the worldThe UK’s geographical diversity and its inequalitiesUneven development within the UK, and the effects of economic growthHow the UK’s population structure has changed since 1900Immigration into the UK in the twenty-first centuryUrban trends in the UK and their effectsA major UK city: its people, challenges and ways of life
UK Environmental Challenges
Topic overviewAir masses, the North Atlantic Drift and the UK’s extreme weatherA UK flood event: causes, effects and responsesHow people use, modify and change UK ecosystemsThe UK’s renewable and non-renewable energy sourcesChanging UK energy supply and demand, and sustainable useRenewables in the UK, and the future of fossil fuelsWhat shapes the UK’s energy choices
Ecosystems of the Planet
Where the coral reefs are, and what they are like
- 3 things to know
- Component 02
Overview
Where the Great Barrier Reef, the Red Sea reef and the New Caledonia, Mesoamerican, Florida and Andros reefs lie, why warm water coral needs tropical, shallow and clear seas, what a coral polyp builds, and how coral and the algae called zooxanthellae depend on each other.
What you need to know
Answer each one before you reveal it.
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Key term
Where is the Great Barrier Reef, and what makes it remarkable?
Key term
Which sea between north-east Africa and the Arabian Peninsula holds a long fringing coral reef?
Questions from this subtopic
Each one with the model answer underneath.
- 1
Where is the Great Barrier Reef, and what makes it remarkable?
Model answer
In the Coral Sea off Queensland in north-eastern Australia, and it is the largest reef system in the world.
- 2
Which sea between north-east Africa and the Arabian Peninsula holds a long fringing coral reef?
Model answer
The Red Sea, whose reef runs for hundreds of kilometres along both of its coasts.
- 3
Where is the New Caledonia Barrier Reef?
Model answer
In the South Pacific Ocean, encircling the island of New Caledonia to the east of Australia.
- 4
Where is the Mesoamerican Barrier Reef, and which countries does it run past?
Model answer
In the Caribbean Sea, along the coasts of Mexico, Belize, Guatemala and Honduras.
- 5
Where is the Florida Reef?
Model answer
Off the southern tip of Florida in the United States, following the line of the Florida Keys.
- 6
Where is the Andros Coral Reef?
Model answer
Along the eastern edge of Andros Island in the Bahamas, in the western Atlantic.
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