Occurrence of Attributes in Original Text
The text related to the cultural heritage 'Rock Art of Alta' has mentioned 'Weathering' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| The main challenge is the weathering process caused by vegetation, frost and other natural processes. | UNESCO |
| A number of methods for limiting and slowing the weathering process have been developed, and others are being tested. | UNESCO |