Which of the following could cause flooding?
Flat valley
Impermeable rocks
Permeable rocks
What is a hydrograph?
A graph to show how a river responds to flooding
A graph to show how much damage is caused by flooding
A graph to predict floods
What is hard engineering management?
Building artificial structures to control rivers
A natural approach to control rivers
Using technology to monitor river flooding rates
What is soft engineering management?
What is a disadvantage of a dam and reservoir?
It increases flood risk downstream
It doesn’t reduce flooding
It is expensive to build
What is river dredging?
Making the river wider
Making the river deeper
Building up the banks of the river
What is a disadvantage of flood warnings?
The equipment used is very expensive
Flash floods happen too quickly for a warning to be effective
People don’t listen to the warnings
What is an advantage of floodplain zoning?
Expensive buildings are further away so there is less economic impact
It can easily be done in all existing built-up areas
Planning is simple as a standard model is followed