Hydrosphere

Question 1

Physical factors affecting movement of water through drainage basin
X10

Answer 1

-type of precipitation (rain snow)
-intensity of precipitation
-duration of precipitation
-frequency of precipitation
-number of streams
-soil type
-vegetation cover
-rock type
-relief
-temperature

Question 2

Human factors affecting movement of water in a drainage basin
X8

Answer 2

-dams and reservoirs
-farming
-Urbanisation
-deforestation
-irrigation
-mining
-afforestation
-altering river channels

Question 3

What is the lag time

Answer 3

The time between peak precipitation and peak discharge

Question 4

What is discharge

Answer 4

The volume of water at a certain point in the river at a particular time

Question 5

Formation of a v shaped valley

Answer 5

Due to a lack of energy the river erodes downwards
As it erodes the sides of the valley are exposed to freeze thaw weathering
This loosens the rock steepening the valley sides
The material moved into the river is transported away and further deepens the valley floor

Question 6

Formation of a waterfall
X4

Answer 6

Where more resistant rock sits on top of less resistant

And as the river flows over the rock it erodes the less resistant

This causes undercutting leading to an overhang called a plunge pool

As the undercutting becomes more pronounced the harder rock collapses into the plunge pool