Hard and Soft Engineering

Dams work by

• storing water and releasing it in a controlled manner

• generating electricity through hydroelectric power

• filtering water for purification

• providing habitat for marine life

What is one benefit of dams?

• They are very effective

• They can cause flooding.

• They can harm aquatic life.

• They can improve irrigation.

How do trees in the drainage basin and catchment area of the river help in water management?

• By increasing soil erosion

• By reducing water retention

• By absorbing and storing rainwater

• By causing floods

What is a potential cost of planting trees in the drainage basin?

• Immediate effectiveness

• Requires no management

• Can take a long time to become effective

• Prevents all flooding

How do flood warnings issued by the Environment Agency in the UK help local people?

• They provide early alerts to prepare for potential flooding.

• They guarantee that no flooding will occur.

• They offer financial compensation for flood damage.

• They prevent all types of natural disasters.

What is one benefit of flood warnings on a larger scale?

• They provide real-time updates.

• They help in efficient resource allocation.

• They reduce the risk of property damage.

• They ensure public safety.

What is a potential cost of frequent 'flood alerts'? It can be a blight and inconvenience for people, especially if forecasts and predictions are unfounded.

• A blight and inconvenience for people

• Increased property value

• Improved weather forecasting

• Enhanced community safety

Flood warnings ensure people are informed and prepared, thus less likely to get caught out and put themselves in danger.

• True

• False

Frequent flood alerts can lower property values and encourage businesses to move elsewhere due to flood 'threat'.

• True

• False

How do raised banks help a river?

• They prevent flooding by containing the river within its banks.

• They increase the speed of the river flow.

• They help in the navigation of boats.

• They provide habitats for aquatic life.