answer
the correct answer is C. Deforestation
reason:
deforestation is not a natural event that can destroy an ecosystem. deforestation is the result of human activity, specifically the clearing of forests for agriculture, logging, and urbanization. while it can have devastating effects on ecosystems, it is not a natural event like a tsunami or volcano eruption. the destruction caused by deforestation is often more gradual and widespread, affecting a larger area over a longer period of time.