Flooding

Question 1

What are the human causes of flooding?

Answer 1

• urbanisation (build on flood plains, bridges and less interception etc.)
• deforestation (soil erosion)
• river management (e.g. channelisation)
• climate change (storms, rainfall increase etc.)

Question 2

What are the physical causes of flooding?

Answer 2

*lots of precipitation over a prolonged period of time
*intense precipitation over a short period of time
*melting of snow
*climatic hazards such as cyclones in Bangladesh
(The nature of the drainage basin has an influence on the likelihood of flooding)