1. materials enters the rivers through WEATHERING and EROSION of the banks and river bed. 2. Eroded material in the river channel is called 'BED LOADED'
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describe how a v- shaped valley is formed?
weathering of valley sides by wind, rain, ice- weakness, then sides collapse into river- Gravity, the vertical erosion material dragged down under force of gravity.
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Describe briefly how a waterfall is formed?
A waterfall forms when the river meets a band of harder- more resistant rock. The soft rock below is eroded by the process of AMBRATION
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what is the hydrological?
it is the amount of water moving through a drainage basin.
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what does a hydrographs do?
Hydrographs are used to measure the relationship between precipitation and river run- off ( discharge)
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what are physical factors that affect flood risk?
amount and type of precipitation, soil type+ rock type, vegetation cover
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ho can we manage flood risk?
hard and soft engineering
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Are we evenly spread?
The worlds populations is not DISTRIBUTED evenly.
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What does urban mean?
A city area
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What does urbanisation mean?
the growth of towns and city's
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which parts of the world are most urbanised?
Many of the worlds largest and most rapidly growing cities are located in poorer countries.
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Other cards in this set
Card 2
Front
describe how a v- shaped valley is formed?
Back
weathering of valley sides by wind, rain, ice- weakness, then sides collapse into river- Gravity, the vertical erosion material dragged down under force of gravity.
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