Which of these is a disturbance that would trigger primary succession?(1 point)

Question

Responses

wildfire
wildfire

road construction
road construction

livestock grazing
livestock grazing

glacial retreat

Answer 1

Glacial retreat is a disturbance that would trigger primary succession. Primary succession occurs in an area where no soil exists, such as after a glacier has melted, exposing bare rock. The other options listed—wildfire, road construction, and livestock grazing—typically involve existing soil and are more associated with secondary succession.