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How do waterfalls form?

Waterfalls form when a river flows over an area of softer rock after flowing over an area of harder rock. Due to the softer rock being more easily eroded than the harder rock, the soft rock undercuts the har...
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Answered by Lucy T. • Geography tutor
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What does HALE stand for?

Health Adjusted Life Expectancy
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Answered by Rosie A. • Geography tutor
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What is the enhanced greenhouse effect?

The enhanced greenhouse effect is the stronger impact caused by human emissions of greenhouse gases. Greenhouse gases include carbon dioxide, methane and water vapour and are often produced by burning fossil...
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Explain two possible disadvantges of food aid for a community that is currently experiencing food shortages.

Food aid is often donated by richer countries and is used in emergency situations but also to help solve long-term hunger. However, this type of aid comes with many disadvantages as often the type of food de...
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Answered by Rosie A. • Geography tutor
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Assess the technologies can be used to help the adaption to future climate change within the continent of Africa (12-20 marks).

Assess is explain the impacts of both positive and negative impacts. The student should also recognise that Africa is a large and diverse area, with multiple climates that will be affected. Technologies can ...
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Answered by Indigo B. • Geography tutor
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