Question

how have you the mounyain passes been helpful to India since historic time,?

Answer 1

these routes have contributed in the exchange of ideas and commodities since ancient times. The ideas of Upanishads and the Ramayana, the stories of Panchtantra, the Indian numerals and the decimal system thus could reach many parts of the world.

the various passes across the mountains in the north have also provided passages to the ancient travellers

Answer 2

Answer:

The various mountain passes across the Himalayan range and other mountains in the north have provided passages to travellers since ancient time. The land routes via mountain passes have contributed in the exchange of ideas and commodities since historic times.