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WorksheetsEV203: Arid Landscapes
Total questions: 15
Worksheet time: 9mins
What is the most important agent of erosion and deposition in a desert?
Wind
Heat
Ice
Water
In which climate classification can you find a desert?
Cfa
BWh
Am
Csa
Where else might you find arid environments?
Select all that apply.
Leeward side of a mountain
Antarctica
BSk climates
In low pressure zones.
What is an exotic stream?
A stream with only intermittent flow
A stream found in rainforests only
A stream that consistently flows through an arid region
A stream with tigers
99% of desert streams are ...
(a)
What dangers do ephemeral streams pose?
They channelize flash floods.
They are home to dangerous fish.
None since they are mostly dry
They are very steep - high competence and capacity.
What causes a lake to become saline?
Rivers feed them from the oceans (they contain ocean water)
They form over sedimentary rock high in salt minerals
The high evaporation rate leaves the remaining water with more dissolved minerals
Which soil orders might be found in an arid landscape?
Entisols
Gelisols
Oxisols
Aridisols
A dry lake bed that forms in a desert basin is known as a ...
(a)
When water flowing through an ephemeral stream channel exits a canyon, a(n) _____ is formed.
delta
alluvial fan
blow out
mesa
Which of the following happens when water exits the canyon into the basin?
The smallest sediment deposits first
Competence decreases
Capacity decreases
Velocity increases
When two or more alluvial fans overlap, a(n) _____ is formed.
bajada
fumarole
scarp
sand dune
Which process is responsible for the creation of mesa-and-scarp landscapes?
Aeolian erosion
Chemical weathering
Differential erosion
Metamorphism
Basin-and-range landscapes are a product of what tectonic force/fault combo?
Extension forces and Normal faults
Tension forces and Reverse faults
Shear forces and Normal Faults
Reverse forces and Shear Faults
The type of sand dunes created depend on which factor(s)?
Prevailing wind direction
Frequency of precipitation
Angle of repose
Availability of sand
