ICSE Class 9 Answered

Three types of faults are:

Normal Faults: A normal fault is a simple fault where the blocks of rocks move up or down. In a normal fault, a piece of land may slide down along the fault plane.

Reverse Fault: Due to compressional forces acting from the opposite directions, a block of rock is forced up and over the other rock against the slope of the fault plane.

Tear fault: When the blocks on either side of the fault are displaced horizontally or sideways, tear faults take place. It is during earthquakes that the tear faults generally occur.