Final answer:
The boundary between the Indo-Australian and Eurasian Plates is a convergent boundary where the plates are moving toward each other, resulting in the formation of mountain ranges and seismic activity.
Step-by-step explanation:
The boundary between the Indo-Australian and Eurasian Plates is a convergent boundary. This means that the plates are moving toward each other. The geologic behavior of this boundary is characterized by the collision of the two plates, resulting in the formation of mountain ranges and seismic activity.