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waterfall

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by

xinlin peh

on 18 April 2010

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Transcript of waterfall

WATERFALL
Waterfall is a place where flowing water flows over a steep region or a cliff
tallest waterfall 979 metres
know as
Angel Falls
is found in the upper course of a river where gradient is steep.
formed in two ways
Erosion of rocks of different resistance.
Faulting
movement of rocks along large cracks in Earth's crust.
lifting one block of land above the other
when river flows downfrom edge of uplifted block,waterfall and plunge pool formed.
GORGES
gorges
river flows through an area with resisitant rocks by its sides, it can erode its channel vertically.
over time, deep, narrow & steep-sided valley is formed
is found in upper course of river.
the end!! bye bye
By". xinlin
yooji
zhi ting
Full transcript