Causes and Characteristics of Flooding (Grade 10 NSC Matric Geography): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is flooding?
What is flooding?
Water covering normally dry land
Why do steep mountain slopes contribute to flooding?
Why do steep mountain slopes contribute to flooding?
Rainwater flows rapidly downhill
What happens when soil becomes completely saturated with water?
What happens when soil becomes completely saturated with water?
Additional rainfall flows over surface
How do urban areas increase flood risk?
How do urban areas increase flood risk?
Creating impermeable surfaces
Why does deforestation increase flood risk?
Why does deforestation increase flood risk?
Trees naturally absorb water & slow run-off
What is base flow on a hydrograph?
What is base flow on a hydrograph?
Normal everyday river flow
What is lag time in a hydrograph?
What is lag time in a hydrograph?
Delay between peak rain & peak discharge
What does peak discharge represent?
What does peak discharge represent?
Maximum water flow during flood event
What unit is river discharge measured in?
What unit is river discharge measured in?
Cubic metres per second (m³/s)
Why is wetland destruction a human cause of floods?
Why is wetland destruction a human cause of floods?
Wetlands absorb excess water naturally