Hydrologic Processes Past A Level Questions
H22008 Q7 either
a) Describe the factors that can affect the drainage density of a drainage basin. [9]
b) Explain the causes of river floods. Using examples, evaluate the methods that can be
employed to manage river floods within catchment areas. [16]
H22008 Q7 or
a) Using hydrographs to illustrate your answer, explain how changes in land use within a
catchment area form woodland to crop cultivation affect discharge. [9]
b) Describe the differences between meandering and braided channels. What do you
consider to be the main reasons why these channels develop differently? [16]
H22007 Q7 either
a) Describe three processes of fluvial erosion. [9]
b) What is meant by the term channel morphology? Why is an understanding of channel
morphology important in explaining the processes occurring in river channels? [16]
H22007 Q7 or
a) Describe and assess the methods that can be employed to predict river floods. [9]
b) Using examples, explain how conflicts of interest can occur in the management of
river basins. [16]
2006 Q9
a) Describe how overland flow occurs and explain the differences between Hortonian
and saturation overland flow. [9]
b) Using an example or examples, explain the factors that need to be considered in the
management of water within a river catchment system. [16]
2005 Q9
a) With the aid of a diagram, explain how rivers transport their load. [9]
b) To what extent can human activities increase the occurrence and effects of river
floods? [16]
2004 Q9
a) Explain what is meant by the term water balance. How may water balance vary
seasonally? [9]
b) How does climate, together with drainage density, geology and relief, affect discharge
within catchment areas? [16]
2003 Q9
a) Explain what is meant, in a drainage basin, by the terms drainage density and stream
order. [9]
b) Describe the causes of flooding and low channel flow within river basins. To what
extent can flooding be predicted and its effects reduced? [16]
2002 Q9
a) With the aid of a diagram, describe the ways in which water flows through a
catchment system. [9]
b) Using an example or examples, explain how the management of river catchments can
create conflicts of interests. [16]