Which of the following would most likely cause geographic isolation?

A. volcanic eruption


B. a large tree falling


C. widening of a lake


D. a forest fireWhich of the following would most likely cause geographic isolation?
Widening of a lake would be the most likely, as it is a geographic barrier.





Volcanic eruptions and forest fires would most likely kill off any species rather than isolating, and a tree is not large enough to be a geographic barrier.