15 Questions
What is the main factor that helps in the formation of stream valleys?
Erosion caused by running water
What characterizes a floodplain in a stream valley?
Wide and level bottom area
Which stage in the aging process of a stream valley has a steep gradient to the land and vigorous water flow?
Youth stage
What happens when a stream erodes enough land to form a stream valley?
A depression in the earth is created
Why are floodplains important in stream valleys?
To designate areas for potential flooding
What is the major mechanism that causes changes to the land around running water sources?
Erosion
What characteristic defines a stream valley?
Floodplain at the lowest point
What characterizes stream valleys in the youth stage?
V-shaped with steep sides and interrupted stream flow
What happens to the valley in the maturity stage of a stream valley?
Valley gets wider and more U-shaped
What characterizes a mature stream valley?
Sloping sides, large floodplain, slow-moving water
Why are stream valleys in the old age stage more susceptible to floods?
Low flow gradient and lack of physical barriers
What happens to the stream flow in a mature stream valley compared to a youth stage valley?
Becomes slower and gentler
Which characteristic is not typical of a youth stage stream valley?
Wide floodplain
In which stage does a stream valley begin to erode the sides instead of downward?
Maturity stage
What leads to the formation of a large floodplain in a mature stream valley?
Stream carrying large sediment load
Explore the concept of stream valleys and the powerful impact of running water on shaping landscapes. Learn about erosion, the movement of rock and soil, caused by streams and rivers.
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