Which of these is a disturbance that would trigger primary succession?(1 point) Responses livestock grazing livestock grazing road construction road construction glacial retreat glacial retreat wildfire wildfire

Answer 1

Glacial retreat is a disturbance that would trigger primary succession. Primary succession occurs in an area where no soil exists and is typically initiated by events like glacial retreat, where bare rock is exposed. The other options you listed, such as livestock grazing, road construction, and wildfire, generally lead to secondary succession since there is usually some form of soil and biological material already present.