4.7

Question 1

Urbanisation

Answer 1

Areas in which it is a city, has lots of people packed together and lots of jobs up for grabs.

Question 2

Urbanisation effects

Answer 2

Impermeable rock will mean that less water can go underground and will effect the floods significance and will effect the lag time.

Question 3

Deforestation.

Answer 3

Less natural things to stop the water going so fast (surface run-off).

Question 4

Hillsides

Answer 4

This means that water can go faster due to it bring a steeper incline and this will decrease the lag time and increase the surface run-off.

Question 5

Saturated soils

Answer 5

There is less room for the water to go into the soil due to it already being so packed with water.

Question 6

Effects of floods

Answer 6

Can cost people a lot of money, can lose a lot of their possessions and much more.

Question 7

Hydrographs

Answer 7

A hydrograph is a graph showing the rate of flow vs time past a specific point in a river, or other channel or conduit carrying flow. The rate of flow is typically expressed in cubic meters or cubic feet per second.