Question

what is meant by vibration​

Answer 1

Answer:

vibration is effective passing of sound waves

Answer 2

Answer:

There are eight types of sheets on the earth's surface, including eight large, twenty medium and small sheets. When the sheets come close to each other, the crust vibrates when there is a collision between them. This is the vibration by which something acts like the crust vibrates.

Hope it help you.