Answer: Knowing the structure of the Earth is important because without the data that the scientists have gathered over time about the Earth's structure, they would not be able to tell when a natural disaster is about to take place and the place where it is going to take place. So, this helps be one step ahead of natural disasters and save lives.
geophysical phenomena is earth and its environment in space for example its when earthquakes, Tsunami, Volcanic activity, cyclone stuff sorta like that
