How was india influence by its physical geography?

The Himalayas separate India from the rest of Asia to the east and west. But, you can still go through by foot because of the passes which is good to visitors, but bad for invasions. It is also heavily influenced by the Indus and Ganges rivers. If the monsoons bring too little water for the crops, the crops suffer; too much rain and deadly floods occur.

~Quizlet.

The mountains cut it off from the rest of the world.