1. Why do we need to test electronic components?
2. When do we conduct the test?​

Option (3)

Explanation:

Reverse faults usually refer to those faults in which the upper block called the Hanging wall, goes up relative to the Lower block called the Footwall. This type of fault generates due to the compressive force exerted from both sides on earth.

The fault plane is a planar surface along which the blocks slip during the time of an earthquake.

These are the region which is the tectonically very active. During an earthquake, it creates a lot of damages to the properties as well as lives.

Hence, the correct answer is option (3).