geomorphology content

Question 1

8 factors influencing water filtration

Answer 1

1. level of water
2. evaporation rate
3. the sloapes gradient
4. nature and amount of rain
   - hard / soft
   - little / hard
5. density and type of plant cover
6. rock permability
   - high permable rock - aquifer
   - low permable rock - aquiclucles
7. soil type
8. land usage

Question 2

4 types of rivers and differences

Answer 2

1. permable / perinial river
   - high rainfall area usually
   - flows annually
   - water table intersects river bed all year
2. periodic / non-perenial river
   - flows only in wet season
   -water table only interesects river bed in wet season
3. eposodic river
   - flows briefly after heavy rainfall
   - water table never intersects riverbed
   - doesnt always flow every year
   - great importance in dry areas
4. exotic river
   - flows through desert but develops in wet area

Question 3

Factors influencing drainage density

Answer 3

1. evaporation rates
   - high temps = low dd
2. amount of rainfall
   - more rain = high dd
3. inflitration rates
   - higher rate=less streams=lower dd
4. sloape / gradient
   - steeper=high dd
5. vegitation cover
6. soil moisture

Question 4

laminar flow vs turbulant flow

Answer 4

1. laminar flow
   - flows in layers
2. turbulant flow
   - flows with bubbly motion

Question 5

3 fluvial processes

Answer 5

1. erosion
2. transparation
3. deposition

Question 6

importance of managing drainage basins

Answer 6

• flood control
• store and protect water
• preserves biodiversity
• agriculture