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All rocks, some are slower than others. Granite is tough, and sandstone erodes quickly.

2007-03-05 08:57:17 · answer #1 · answered by Rockvillerich 5 · 0 0

The ones based on calcium carbonate like chalk and granite.

2007-03-05 18:06:27 · answer #2 · answered by Anonymous · 0 0

Yes, I agree with the person above, also limestone errodes quickly eg. caves in Kentucky.

2007-03-05 17:45:00 · answer #3 · answered by Anonymous · 0 0

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