Answer:
The correct answer is B.
Step-by-step explanation:
Natural changes hold, volcanic activity, floods, dehydration, hurricanes, and earthquakes. They have benefits or deadly. Flood is a natural change that often considered as deadly or harmful but it has its own advantages like providing nutrients to the soil need nutrition and relocation of aquatic organisms in water bodies, which helps in developing the ecosystem.
Thus, the correct answer is option B.