which factor can cause secondary succession?\nclear cutting\nglacial melting\ncompetition\npredation

Answer:

A. clear cutting

Brief Explanations:

Secondary succession occurs in an area that has had a previous community and has soil already present. Clear - cutting removes existing vegetation but leaves the soil intact, triggering secondary succession. Glacial melting is associated with primary succession as it creates new, barren land. Competition and predation are ecological interactions and not direct causes of secondary succession.