Geography 4.8

Question 1

Why is river flood risk increasing? Include global climate change and human activity in drainage basins

Answer 1

Human factors increasing flood risk: urbanisation, because towns and cities have more impermeable surfaces. deforestation, because removing trees reduces the amount of water intercepted and increases run-off.
In short global warming is the big hitter

Question 2

Compare how soft and hard engineering schemes work

Answer 2

Hard options tend to be more expensive and have a greater impact on the river and the surrounding landscape.
Soft options are more ecologically sensitive. The tables summarise the main flood management techniques.

Question 3

Explain what each hard engineering scheme is, how they work and the pros/cons

Answer 3

Hard options tend to be more expensive and have a greater impact on the river and the surrounding landscape.

Question 4

Explain what each soft engineering scheme is, how they work and the pros/cons

Answer 4

Soft options are more ecologically sensitive. The tables summarise the main flood management techniques.