causes of flooding

Question 1

Five physical reasons that causes flooding

Answer 1

1. Steep land
2. Impermeable rock
3. Heavy rain
4. Saturated ground
5. Melted snow

Question 2

Name three human causes of flooding

Answer 2

1. deforestation
2. Channelisation
3. Urbanisation

Question 3

how does steep land cause flooding?

Answer 3

Water will roll down the steep slope and Gather at the bottom

Question 4

How does impermeable rock cause flooding?

Answer 4

Water will sit at the top and roll across the landscape because they can’t get through them

Question 5

How does saturated ground cause flooding?

Answer 5

So you can’t take any more water so it sits on top and starts to move across the surface

Question 6

How does deforestation cause flooding?

Answer 6

when rainforest the tree intercepts the water which slows it getting to the river, when trees aren’t there, there’s nothing to slow the flow of water

Question 7

How does channelisation cause flooding?

Answer 7

it speeds the water up and move it quickly from a specific area so that the area doesn’t flood. This makes it flood further upstream as the water increases by speed.

Question 8

How does urbanisation cause flooding?

Answer 8

building path and roots are in permanent surfaces and drainage systems
Drain take water into the river quicker