Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Pre-Hispanic City of Teotihuacan' has mentioned 'Agriculture' in the following places:
Occurrence Sentence Text Source
The majority of their food came from agriculture: They grew things such as maize, beans, amaranth, green tomatoes (tomatillos?
There is a theory[40] that the collapse of Teotihuacan was caused by the devastation of its agriculture by the 535 CE eruption of the Ilopango volcano in El Salvador.