Food supply and demand around the world Cambridge IGCSE Geography (9–1) revision
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In plain words
The world grows enough food for everyone. Yet hundreds of millions go hungry while others eat far more than they need. Where food is grown, where it is eaten, and how it travels between the two explain why.
7 things to know
- Calorie intake per person is highest in high-income regions such as North America and Europe, and lowest in parts of sub-Saharan Africa and South Asia.
- The reasons: income to buy food, how productive farming is, climate and soils, conflict, and the ability to import.
- World food production has risen through high-yielding varieties of crops, irrigation, fertilisers and pesticides, machinery, and bringing more land into use.
- Consumption is rising because population is growing and incomes are rising. As people become richer they eat more meat, dairy and processed food, which take more land and water to produce.
- Food supplies have become globalised: food is grown in one part of the world and eaten in another. Refrigerated ships and aircraft, large supermarket companies, and demand for foods all year round have made this possible.
- Benefits of global food supply: more choice all year, and income and jobs for farmers who export.
- Problems: emissions from transport over long distances (food miles), land in poor countries used for export crops in place of food for local people, and dependence on imports whose price can rise suddenly.
Worked example
A supermarket in Europe sells green beans flown from East Africa in winter. Give one benefit and one problem of this trade.
- Benefit: farmers and packers in East Africa earn an income, and the country earns foreign currency.
- Problem: flying the beans releases a great deal of carbon dioxide, and land and water are used for an export crop in a region where food may be short.
Tips and tricks
- Calorie intake depends on being able to afford food, not only on how much is grown. Countries with little farmland can be well fed if they can pay for imports.
- "Food miles" is the distance food travels from producer to consumer. Use the term for the environmental cost.
It lands in your notebook with its questions as flashcards.
Food supply and demand around the world: 5 questions and answers
These are the quiz’s questions. Do the quiz first, then come back here for the ones that got you.
Where is calorie intake per person generally lowest?
Low incomes, low farm output and conflict all play a part.
Which has increased world food production?
They give more food from the same land.
Why does eating more meat increase pressure on resources?
Much grain is fed to animals.
What are food miles?
More miles usually mean more emissions.
Which is a problem of the globalisation of food supplies?
Local people may go short while food is exported.
Quiz
5 questions
Tap an answer and you’ll see straight away whether it’s right, and why.
Worksheet
3 questions, 9 marks. Write your answers on paper, then check them.
Food supply and demand around the world
Cambridge IGCSE Geography (9–1) 0976 · 9 marks · papermunch.org
Name ______________________________ Date ______________
Give three reasons why average calorie intake is higher in high-income countries.[3]
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People have more money to buy food. Farming is more productive, with machinery and fertiliser. These countries can afford to import food.
Explain two reasons why global food consumption is increasing.[4]
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The world's population is growing, so there are more people to feed. Incomes are rising, so people eat more, especially meat and dairy products.
Explain what is meant by the globalisation of food supplies.[2]
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Food is produced in one part of the world and transported to be consumed in another, so that supply chains stretch around the globe.
Answers: Food supply and demand around the world
- 1. People have more money to buy food. Farming is more productive, with machinery and fertiliser. These countries can afford to import food.
- 2. The world's population is growing, so there are more people to feed. Incomes are rising, so people eat more, especially meat and dairy products.
- 3. Food is produced in one part of the world and transported to be consumed in another, so that supply chains stretch around the globe.



