The lack of plate tectonics on other planets in our solar system likely means which of the following must be true? a. No other planet has a solid crust over a moving upper mantle. b. Earth has more layers than any other planet. c. Earth is the only planet with a magnetic field. d. No other planet has a warm interior.

true. earthquakes are felt whenever there is a slip around a fault in the rocks below the earth. this reorientation of faults create sesmic waves and is known as earthquake, the severity of which is measured in richter scale. these are more prominent in hilly regions as the rocks usually form faults to balance the pressures on it.