RISE QUIZ 1/12/23

What is a flood?

• When too much water falls from the sky

• When lots of water reaches the land

• When a river bursts its banks

• When a river meets the sea

How do steep slopes increase flooding?

• The water reaches the river slower

• The water gets soaked up by the land quicker

• The water isn't absorbed at all

• The water flows faster down the slopes reaching the river quicker

How does a built up area increase flooding?

• The water enters the river more slowly

• Less water is absorbed because concrete and build up areas are not permeable surfaces (water cannot go through)

• There is more opportunity for the water to be absorbed because concrete and built up areas are permeable surfaces (water can go through)

• There is more green space

Why does having lots of plants make flooding slower?

• The plants cannot absorb water very fast

• The plants' roots are connected to the river

• The plants absorb water (interception) so the water takes longer to reach the river

• Plants increase run-off

A river's ________________ is the starting point of the river.

• source

• triutaries

• mouth

• drainage basin

The place where the river pours (THROWS UP) into the ocean or large lake is called the ___________.

• source

• tributaries

• mouth

• drainage basin

What pairs of factors are human causes of flooding?

• Heavy rainfall & urbanisation

• Steep slopes & deforestation

• Urbanisation & deforestation

• Snow melt & urbanisation

What pairs of factors are physical causes of flooding?

• Urbanisation & snow melt

• Deforestation & steep slopes

• Snow melt & steep slopes

• Heavy rainfall & deforestation

Which of these factors encourages flooding?

• A gentle sided valley

• Woodland

• Urbanisation

What is the cause of flooding in this image?

• Impermeable surface

• Steep slopes

• Snow melt

• Heavy rainfall