Flashcards
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Cards in this deck (9)
- 1What is the rock formation on the top of the waterfall?Hard rock is above softer rock
- 2Give an example of the hard rockLimestone
- 3Give an example of the soft rockSandstone
- 4What is the rock eroded by and which rock erodes quicker?The softer rock is eroded by hydraulic action
- 5What happens to the hard rock as a result of thisThe hard rock is undercut and so is left unsupported as an overhang
- 6What happens to the unsupported overhang?It eventually collapses due to gravity
- 7What happens to the collapsed material and falling water?It erodes the bottom of the waterfall, by hydraulic action and abrasion, forming a plunge pool
- 8What happens to splashing water in the plunge pool?Water splashes against the back wall of the waterfall, eroding the soft rock further
- 9W
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- Flashcards on Untitled, created by ben h on 20/10/2019.
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- ben h
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