Question

Frontier mean for America?
डॉ. सन-यात सेना कौन थे? उनके सिद्धांतों का वर्णन करो।
​

Answer 1

Answer:

The word 'Frontier' basically means a borderland between two separate countries.

Also frontier is also considered as the zone of transition where explorer and colonizers were arriving.

Plz do mark as Brainliest ✌️