Answer:
Agriculture
Step-by-step explanation:
Anthropogenic activities are activities caused or influenced by humans. In ecological succession, changes can also be induced by human activities. One of the activities that can be engaged in by humans to provoke ecological succession is AGRICULTURE.
Performing certain agricultural practices can alter the composition and structure of a community, hence, resulting into ecological succession. Therefore, AGRICULTURE could be an anthropogenic factor that would influence ecological succession.
N.B: the other two occurrences are natural disasters.