After a volcanic eruption, lava flowed over an area and then cooled to form a thick layer of new rock. One thousand years later, a thriving forest with diverse flora and fauna is found in that area, even though evidence suggests that several large forest fires have occurred. Which statement best describes what happened? * 2 points
Secondary succession occurred, followed by several primary successions.
Only secondary successions occurred.
Primary succession occurred, followed by several secondary successions.
Only primary successions occurred.