Complete the passage to distinguish between mechanical and electromagnetic waves. waves that move through matter only are called waves. waves that move through space are called waves.

Waves that Move through matter only are called Mechanical waves.

Waves that move through space only are called electromagnetic waves.

The common points of ocean ridges and fault-block mountains are : they both created due to the tectonics; they both are continious mountain system grouped into a large chain of rocks.
 The points which make differences between these systems : Ocean ridges are obviously an underwater mountain whereas the localization of fault blocks is concentrated in Earth's crust.