Human activity (Edexcel GCSE Geography A): Quizzes
📚Quizzes
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12 questions from this quiz
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Practise the questions
12 questions from this quiz
Which surfaces created by urbanisation prevent water from soaking into the ground?
Which surfaces created by urbanisation prevent water from soaking into the ground?
Impermeable surfaces
What effect does increased surface run-off from urban areas have on rivers?
What effect does increased surface run-off from urban areas have on rivers?
Higher discharge rates
Why does building on floodplains increase flood risk?
Why does building on floodplains increase flood risk?
It removes natural flood storage
What natural processes does channelisation prevent in rivers?
What natural processes does channelisation prevent in rivers?
Erosion and deposition
How do agricultural field drainage systems affect water movement?
How do agricultural field drainage systems affect water movement?
They act as fast water highways
What role do trees play in reducing surface run-off?
What role do trees play in reducing surface run-off?
They intercept rainfall
What percentage of annual rainfall can forests intercept in some regions?
What percentage of annual rainfall can forests intercept in some regions?
Up to 25%
What happens to rivers when water is abstracted for irrigation?
What happens to rivers when water is abstracted for irrigation?
They deposit more sediment
How does ploughing affect sediment movement into rivers?
How does ploughing affect sediment movement into rivers?
It makes soil easier to wash away
What effect does high industrial water demand have on river discharge?
What effect does high industrial water demand have on river discharge?
Lowers discharge rates
What can chemical pollution from industry do to river ecosystems?
What can chemical pollution from industry do to river ecosystems?
Kill aquatic plants & animals
What are cascading effects in river systems?
What are cascading effects in river systems?
One change triggering more changes