Thread: Little quiz for 5 mins...
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Old 03-03-10, 12:54 PM   #26
Luckypants
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Default Re: Little quiz for 5 mins...
Quote:
Originally Posted by Jabba View Post
The water erodes the rock, therefore the geographic position of the falls changes with time
It used to erode at about 3 meters a year, but now the river is controlled and erosion is about 1.2m / year
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