Freshwater 2 - Flooding and flood mitigation

What is the difference in time between peak rainfall and peak discharge called?

• Tea time

• Lunch time

• Delay time

• Lag time

The normal flow of a river displayed in a hydrograph is called ____ flow.

Which type of hydrograph shows a river responding quickly to a rainfall event, usually resulting in a flood.

• Lagged

• Flashy

What is the term for "the maximum amount of discharge a river channel can hold"?

• Bankfull discharge
• Flood stage
• Discharge limit
• River capacity

What is the term given to the amount of moisture stored underground after a previous period of precipitation?

• Rainfall runoff
• Antecedent moisture

• Groundwater

• Surface water

A strategy aiming to fix the issue of flooding is known as...

• Adaptation

• Management

• Mitigation

• Abandonment

Which of the following is an example of flood adaptation?

• Building a dam

• Installing embankments

• Planting trees

• Flood Plain Zoning

Which of the following will NOT lead to more impermeable surfaces?

• Paving driveways and pathways

• Planting vegetation

• Creating playgrounds in parks

• Building Construction

What process/act reduces interception and exposes soil to erosion?

What reduces the risk of flooding since the channel can hold more volume?

• Increased vegetation along banks
• Narrow river channels
• Wider or deeper river channels
• Shallow riverbeds