Flooding occurs when a river receives more water than it can channel within its banks due to ___ or ___ .

Heavy rainfall or rapid snowmelt

True or False: Urbanization decreases the risk of flooding by increasing permeable surfaces.

False: Urbanization increases the risk of flooding by replacing permeable surfaces with impermeable ones.

What role does topography play in river flooding?

Topography affects how quickly rainwater reaches rivers; steep slopes cause water to rush down faster, increasing runoff and flood risk.

Fill in the blank: Soil that is too dry can form a hard crust, which ___ water absorption and increases surface runoff.

Prevents

Riddle: I can be caused by heavy rains or melting snow, and I overflow my banks to create a wide, wet show. What am I?

A river flood

What are the consequences of deforestation on flood risk?

Deforestation removes trees that absorb rainfall and water, leading to increased runoff and higher flood risk.

What role do agencies like the Environment Agency play in flood management in the UK?

Agencies manage flood risks effectively.

• Monitor rainfall and river levels.

• Predict floods using collected data.

• Issue warnings to the public.

Flooding can be mitigated through afforestation, which helps by ___ .

Slowing down the flow of water and reducing the speed at which it reaches rivers.

True or False: The UK can completely prevent flooding through engineering solutions.

False. While engineering solutions can mitigate the effects of flooding, it is impossible to completely prevent flooding.

Riddle: I am built to hold back water, but I’m not a wall; I can be made of dirt or concrete, and I help prevent a flood’s call. What am I?

An embankment.

Controlled flooding is sometimes used to protect ___ regions.

More vulnerable regions.

What is one urban planning strategy used in cities to manage excess water?

Using concrete linings and straightened river channels to direct water away from populated areas.

What is the primary cause of river flooding?

River flooding occurs when a river receives more water than it can channel within its banks, often due to heavy rainfall or rapid snowmelt.

Fill in the blank: Soil that is already ___ from previous rainfall cannot absorb more water, leading to increased runoff.

Saturated

True or False: Urbanization decreases the risk of flooding by increasing the amount of permeable surfaces.

False. Urbanization increases the risk of flooding because it replaces permeable ground with impermeable surfaces like concrete.