Causes Of Flooding

Question 1

5 physical reasons that cause flooding

Answer 1

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

Question 2

Name 3 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 rocks cause flooding

Answer 4

Water will sit at the top and roll across the landscape because it cant get through them

Question 5

How does saturated ground cause flooding

Answer 5

Soil cant take anymore water so it sits on the top and starts to move across the surface

Question 6

How does deforestation cause flooding

Answer 6

When rain falls the trees intercepted the water which slows it getting in the river, when trees arent there, theres nothing to slow the flow of water

Question 7

How does channelisation cause flooding

Answer 7

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

Question 8

How does urbanisation cause flooding

Answer 8

Buildings path and roads are impermeable surfaces and drainage systems. Drains take water into the river quicker