Assertion: range's mountain | /r/HasProperty | eroded
Facets:
Source sentences:
text: In his paper, he explained his theory that the Earth must be much older than had previously been supposed to allow enough time for mountains to be eroded and for sediments to form new rocks at the bottom of the sea, which in turn were raised up to become dry land.
text: Today, geologists estimate that the mountains are being eroded about two inches every thousand years.