Causes and effects of flooding (Edexcel GCSE Geography A): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What happens when river flooding occurs?
What happens when river flooding occurs?
Water spills onto the floodplain
What happens when heavy rainfall saturates the ground?
What happens when heavy rainfall saturates the ground?
Water flows over surface as overland flow
Which rock type is described as impermeable?
Which rock type is described as impermeable?
Granite
How does limestone differ from granite in affecting flood risk?
How does limestone differ from granite in affecting flood risk?
Limestone allows percolation, reducing risk
Why does spring snowmelt increase flood risk?
Why does spring snowmelt increase flood risk?
Large water volumes released suddenly
Which drainage basin feature increases flood risk?
Which drainage basin feature increases flood risk?
Steep-sided valleys
What physical effect does floodwater have on soil?
What physical effect does floodwater have on soil?
Carries away fertile topsoil
What contaminates water during flooding?
What contaminates water during flooding?
Sewage, chemicals, and debris
What are immediate human health threats from flooding?
What are immediate human health threats from flooding?
Death and waterborne diseases
What does a flood hydrograph show?
What does a flood hydrograph show?
River response to rainstorm over time
What is lag time on a flood hydrograph?
What is lag time on a flood hydrograph?
Time between peak rainfall & peak discharge
How does lag time relate to flood risk?
How does lag time relate to flood risk?
Shorter lag time means higher flood risk