Question

Difference bw intermontane and volcanic plateau other than there formation

Answer 1

When a plateau is covered  by mountains on all sides, it is called an Intermontane plateau. The Tibetan plateau, the Bolivian plateau are examples of the Intermontane plateau.

Volcanic plateaus are produced by the volcanic activity. The lava which flows down from the volcano, it accumulates and form a plateau. The Deccan Plateau  is an example of the volcanic plateau.