Question

Which is not true about terranes? A. Terranes come in many shapes and sizes. B.The Indian subcontinent is a terrane. C. Many terranes are island arcs like Japan and the Philippines. D. North America east of the Rocky Mountains was once a terrane.

Answer 1

Terrane denotes a piece of crust which has been in a collision along a convergent crustal  boundary and become accreted to another crustal plate. This block of the Earth's crust differs from the surrounding material, and is separated from it.

The following statement is not true about terranes: Many terranes are island arcs like Japan and the Philippines

Answer 2

North America east of the Rocky Mountains was never a terrane, however island arcs and archipelagos can be part of terranes. South Asia is a Terrane and obviously they come in different shapes, therefore the answer must be D