YEAR 7 QUIZZIZ ON FLOODS

Which of the following rainfall characteristic will most likely not result in a flood?

• High rainfall frequency

• Long rainfall duration

• High rainfall intensity

• Low rainfall frequency

What are the causes of floods?

• Snowmelt

• Storm Surge

• Heavy Rainfall

• Failure of man-made structures

• All of the above

Why are cities more prone to flooding than rural areas?

• Cities are nearer to water bodies than rural areas.

• Cities are located at lower lying areas than rural areas.

• Cities have more concrete/impermeable surfaces than rural areas.

• Cities have larger canals than rural areas.

What occurs when water flows or collects over land that is usually dry.

• dam
• flood
• floodway
• levee

What are floods?

• Pellets of ice that fall during thunderstorms
• Whirling colums of clouds, air that descend from supercell thunderstorms
• None of the Above
• When water overflows oceans, lakes, rivers due to too much precipitation, or even caused by explosions

What is the part of flash floods which cause damage?

• Snakes
• Houses 
• Wood
• Power of moving water

Flood waters can be dangerous. They can carry away cars and people.

• TRUE

• FALSE

What of these is a human cause of flooding?

• Heavy rainfall

• Steep slopes

• Urbanisation

Which of these is a physical cause of flooding?

• Urbanisation

• Deforestation

• Steep slopes

What is impermeable rock?

• Rock that doesn't allow water through it

• Rock that does allow water through it

• Rock that allows water through it during times of flood