human
Question: After mining removes layers of rock from a hillside, new plants begin to grow in the cracks of the bare rock. The plants beginning to grow are an example of which natural process?

Choices:
A) secondary succession in an existing ecosystem
B) new species developing in an ecosystem
C) species competition in a community
D) primary succession in a new habitat
gpt
The correct answer is 3: primary succession in a new habitat.