Answer:
Option (3)
Explanation:
Earthquake often refers to the sudden shaking of the ground surface due to the propagation of seismic waves below the surface of the earth. These waves carry energy from the focus towards the surface. Focus is the point from where an earthquake originates.
An earthquake can cause a tremendous effect on the properties as well as lives, depending upon its magnitude. It leads to the collapsing of buildings and houses. It also causes fire due to the breaking of the electrical lines and tearing of the gas pipelines. High magnitude earthquakes also breaks down the dams that lead to extensive flooding, thereby making the situation more catastrophic. A large number of lives and properties are affected.
Thus, the correct answer is option (3).
